73634081 has 4 divisors (see below), whose sum is σ = 73728432. Its totient is φ = 73539732.

The previous prime is 73634047. The next prime is 73634117. The reversal of 73634081 is 18043637.

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: 18043637 = 251 ⋅71887.

It is a cyclic number.

It is not a de Polignac number, because 73634081 - 2²⁶ = 6525217 is a prime.

It is a super-2 number, since 2×73634081² = 10843955769429122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73639081) 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, 45995 + ... + 47568.

It is an arithmetic number, because the mean of its divisors is an integer number (18432108).

Almost surely, 2^73634081 is an apocalyptic number.

It is an amenable number.

73634081 is a deficient number, since it is larger than the sum of its proper divisors (94351).

73634081 is an equidigital number, since it uses as much as digits as its factorization.

73634081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94350.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 73634081 is about 8581.0302994454. The cubic root of 73634081 is about 419.1404966269.

The spelling of 73634081 in words is "seventy-three million, six hundred thirty-four thousand, eighty-one".