76631228 has 6 divisors (see below), whose sum is σ = 134104656. Its totient is φ = 38315612.

The previous prime is 76631207. The next prime is 76631231. The reversal of 76631228 is 82213667.

It is a happy number.

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, 9578900 + ... + 9578907.

It is an arithmetic number, because the mean of its divisors is an integer number (22350776).

Almost surely, 2^76631228 is an apocalyptic number.

It is an amenable number.

76631228 is a deficient number, since it is larger than the sum of its proper divisors (57473428).

76631228 is a wasteful number, since it uses less digits than its factorization.

76631228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19157811 (or 19157809 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 76631228 is about 8753.9264333212. The cubic root of 76631228 is about 424.7518329726.

The spelling of 76631228 in words is "seventy-six million, six hundred thirty-one thousand, two hundred twenty-eight".