73641101 has 4 divisors (see below), whose sum is σ = 76842912. Its totient is φ = 70439292.

The previous prime is 73641097. The next prime is 73641103. The reversal of 73641101 is 10114637.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10114637 = 13 ⋅778049.

It is a cyclic number.

It is not a de Polignac number, because 73641101 - 2² = 73641097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 3201787 = 73641101 / (7 + 3 + 6 + 4 + 1 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73641103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600871 + ... + 1600916.

It is an arithmetic number, because the mean of its divisors is an integer number (19210728).

Almost surely, 2^73641101 is an apocalyptic number.

It is an amenable number.

73641101 is a deficient number, since it is larger than the sum of its proper divisors (3201811).

73641101 is a wasteful number, since it uses less digits than its factorization.

73641101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201810.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 73641101 is about 8581.4393314875. The cubic root of 73641101 is about 419.1538159701.

Adding to 73641101 its reverse (10114637), we get a palindrome (83755738).

The spelling of 73641101 in words is "seventy-three million, six hundred forty-one thousand, one hundred one".