72760641 has 4 divisors (see below), whose sum is σ = 97014192. Its totient is φ = 48507092.

The previous prime is 72760637. The next prime is 72760669. The reversal of 72760641 is 14606727.

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: 14606727 = 3 ⋅4868909.

It is a cyclic number.

It is not a de Polignac number, because 72760641 - 2² = 72760637 is a prime.

It is a super-2 number, since 2×72760641² = 10588221757461762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72760141) 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, 12126771 + ... + 12126776.

It is an arithmetic number, because the mean of its divisors is an integer number (24253548).

Almost surely, 2^72760641 is an apocalyptic number.

It is an amenable number.

72760641 is a deficient number, since it is larger than the sum of its proper divisors (24253551).

72760641 is a wasteful number, since it uses less digits than its factorization.

72760641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24253550.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 72760641 is about 8529.9848182749. The cubic root of 72760641 is about 417.4766329686.

The spelling of 72760641 in words is "seventy-two million, seven hundred sixty thousand, six hundred forty-one".