77988675 has 24 divisors (see below), whose sum is σ = 129547264. Its totient is φ = 41398560.

The previous prime is 77988671. The next prime is 77988731. The reversal of 77988675 is 57688977.

It is not a de Polignac number, because 77988675 - 2² = 77988671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77988671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14394 + ... + 19056.

Almost surely, 2^77988675 is an apocalyptic number.

77988675 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

77988675 is a deficient number, since it is larger than the sum of its proper divisors (51558589).

77988675 is a wasteful number, since it uses less digits than its factorization.

77988675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899 (or 4894 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 57.

The square root of 77988675 is about 8831.1196911830. The cubic root of 77988675 is about 427.2451885965.

The spelling of 77988675 in words is "seventy-seven million, nine hundred eighty-eight thousand, six hundred seventy-five".