77240088 has 32 divisors (see below), whose sum is σ = 214556400. Its totient is φ = 25746624.

The previous prime is 77240087. The next prime is 77240101. The reversal of 77240088 is 88004277.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77240081) 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, 178581 + ... + 179012.

Almost surely, 2^77240088 is an apocalyptic number.

It is an amenable number.

77240088 is an abundant number, since it is smaller than the sum of its proper divisors (137316312).

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

77240088 is a wasteful number, since it uses less digits than its factorization.

77240088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357608 (or 357598 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 77240088 is about 8788.6340235557. The cubic root of 77240088 is about 425.8737971726.

The spelling of 77240088 in words is "seventy-seven million, two hundred forty thousand, eighty-eight".