72605641 has 8 divisors (see below), whose sum is σ = 75907584. Its totient is φ = 69315840.

The previous prime is 72605609. The next prime is 72605653. The reversal of 72605641 is 14650627.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72605641 - 2⁵ = 72605609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72605681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10536 + ... + 16006.

It is an arithmetic number, because the mean of its divisors is an integer number (9488448).

Almost surely, 2^72605641 is an apocalyptic number.

It is an amenable number.

72605641 is a deficient number, since it is larger than the sum of its proper divisors (3301943).

72605641 is a wasteful number, since it uses less digits than its factorization.

72605641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 72605641 is about 8520.8943779394. The cubic root of 72605641 is about 417.1799758709.

The spelling of 72605641 in words is "seventy-two million, six hundred five thousand, six hundred forty-one".