76643372 has 48 divisors (see below), whose sum is σ = 149436672. Its totient is φ = 34171200.

The previous prime is 76643339. The next prime is 76643393. The reversal of 76643372 is 27334667.

It is a happy number.

It is a super-4 number, since 4×76643372⁴ (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337523 + ... + 337749.

It is an arithmetic number, because the mean of its divisors is an integer number (3113264).

Almost surely, 2^76643372 is an apocalyptic number.

It is an amenable number.

76643372 is a deficient number, since it is larger than the sum of its proper divisors (72793300).

76643372 is a wasteful number, since it uses less digits than its factorization.

76643372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 436 counting only the distinct ones).

The product of its digits is 127008, while the sum is 38.

The square root of 76643372 is about 8754.6200374431. The cubic root of 76643372 is about 424.7742690557.

The spelling of 76643372 in words is "seventy-six million, six hundred forty-three thousand, three hundred seventy-two".