76531772 has 24 divisors (see below), whose sum is σ = 142074240. Its totient is φ = 35970480.

The previous prime is 76531769. The next prime is 76531801. The reversal of 76531772 is 27713567.

It is a super-2 number, since 2×76531772² = 11714224250919968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6113 + ... + 13799.

It is an arithmetic number, because the mean of its divisors is an integer number (5919760).

Almost surely, 2^76531772 is an apocalyptic number.

It is an amenable number.

76531772 is a deficient number, since it is larger than the sum of its proper divisors (65542468).

76531772 is a wasteful number, since it uses less digits than its factorization.

76531772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841 (or 7839 counting only the distinct ones).

The product of its digits is 61740, while the sum is 38.

The square root of 76531772 is about 8748.2439380712. The cubic root of 76531772 is about 424.5679984005.

The spelling of 76531772 in words is "seventy-six million, five hundred thirty-one thousand, seven hundred seventy-two".