73656601 has 4 divisors (see below), whose sum is σ = 73842532. Its totient is φ = 73470672.

The previous prime is 73656593. The next prime is 73656613. The reversal of 73656601 is 10665637.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23232400 + 50424201 = 4820^2 + 7101^2 .

It is a cyclic number.

It is not a de Polignac number, because 73656601 - 2³ = 73656593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73656691) 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, 92370 + ... + 93163.

It is an arithmetic number, because the mean of its divisors is an integer number (18460633).

Almost surely, 2^73656601 is an apocalyptic number.

It is an amenable number.

73656601 is a deficient number, since it is larger than the sum of its proper divisors (185931).

73656601 is a wasteful number, since it uses less digits than its factorization.

73656601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185930.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 73656601 is about 8582.3423958731. The cubic root of 73656601 is about 419.1832217787.

The spelling of 73656601 in words is "seventy-three million, six hundred fifty-six thousand, six hundred one".