73636401 has 16 divisors (see below), whose sum is σ = 106769664. Its totient is φ = 44953344.

The previous prime is 73636397. The next prime is 73636441. The reversal of 73636401 is 10463637.

It is not a de Polignac number, because 73636401 - 2² = 73636397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73636441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17625 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (6673104).

Almost surely, 2^73636401 is an apocalyptic number.

It is an amenable number.

73636401 is a deficient number, since it is larger than the sum of its proper divisors (33133263).

73636401 is a wasteful number, since it uses less digits than its factorization.

73636401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39080.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 73636401 is about 8581.1654802830. The cubic root of 73636401 is about 419.1448985547.

The spelling of 73636401 in words is "seventy-three million, six hundred thirty-six thousand, four hundred one".