72605662 has 4 divisors (see below), whose sum is σ = 108908496. Its totient is φ = 36302830.

The previous prime is 72605653. The next prime is 72605681. The reversal of 72605662 is 26650627.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18151414 + ... + 18151417.

It is an arithmetic number, because the mean of its divisors is an integer number (27227124).

Almost surely, 2^72605662 is an apocalyptic number.

72605662 is a deficient number, since it is larger than the sum of its proper divisors (36302834).

72605662 is a wasteful number, since it uses less digits than its factorization.

72605662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36302833.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 72605662 is about 8520.8956102044. The cubic root of 72605662 is about 417.1800160917.

The spelling of 72605662 in words is "seventy-two million, six hundred five thousand, six hundred sixty-two".