77481675 has 18 divisors (see below), whose sum is σ = 138778692. Its totient is φ = 41323440.

The previous prime is 77481667. The next prime is 77481697. The reversal of 77481675 is 57618477.

It is not a de Polignac number, because 77481675 - 2³ = 77481667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 77481675.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 171957 + ... + 172406.

Almost surely, 2^77481675 is an apocalyptic number.

77481675 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

77481675 is a deficient number, since it is larger than the sum of its proper divisors (61297017).

77481675 is a wasteful number, since it uses less digits than its factorization.

77481675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344379 (or 344371 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 77481675 is about 8802.3675792368. The cubic root of 77481675 is about 426.3173427253.

The spelling of 77481675 in words is "seventy-seven million, four hundred eighty-one thousand, six hundred seventy-five".