73849961 has 4 divisors (see below), whose sum is σ = 73869012. Its totient is φ = 73830912.

The previous prime is 73849943. The next prime is 73849969. The reversal of 73849961 is 16994837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16994837 = 1129 ⋅15053.

It can be written as a sum of positive squares in 2 ways, for example, as 26584336 + 47265625 = 5156^2 + 6875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73849961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73849969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400 + ... + 12233.

It is an arithmetic number, because the mean of its divisors is an integer number (18467253).

Almost surely, 2^73849961 is an apocalyptic number.

It is an amenable number.

73849961 is a deficient number, since it is larger than the sum of its proper divisors (19051).

73849961 is a wasteful number, since it uses less digits than its factorization.

73849961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19050.

The product of its digits is 326592, while the sum is 47.

The square root of 73849961 is about 8593.6000023273. The cubic root of 73849961 is about 419.5497082584.

The spelling of 73849961 in words is "seventy-three million, eight hundred forty-nine thousand, nine hundred sixty-one".