77628376 has 32 divisors (see below), whose sum is σ = 175104000. Its totient is φ = 31517856.

The previous prime is 77628359. The next prime is 77628379. The reversal of 77628376 is 67382677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77628379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35416 + ... + 37543.

It is an arithmetic number, because the mean of its divisors is an integer number (5472000).

Almost surely, 2^77628376 is an apocalyptic number.

77628376 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

77628376 is an abundant number, since it is smaller than the sum of its proper divisors (97475624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77628376 is a wasteful number, since it uses less digits than its factorization.

77628376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72991 (or 72987 counting only the distinct ones).

The product of its digits is 592704, while the sum is 46.

The square root of 77628376 is about 8810.6966807398. The cubic root of 77628376 is about 426.5862310394.

The spelling of 77628376 in words is "seventy-seven million, six hundred twenty-eight thousand, three hundred seventy-six".