77939150 has 24 divisors (see below), whose sum is σ = 147707064. Its totient is φ = 30586400.

The previous prime is 77939149. The next prime is 77939161. The reversal of 77939150 is 5193977.

It is a super-2 number, since 2×77939150² = 12149022205445000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77939098 and 77939107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12056 + ... + 17355.

It is an arithmetic number, because the mean of its divisors is an integer number (6154461).

Almost surely, 2^77939150 is an apocalyptic number.

77939150 is a deficient number, since it is larger than the sum of its proper divisors (69767914).

77939150 is a wasteful number, since it uses less digits than its factorization.

77939150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29476 (or 29471 counting only the distinct ones).

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 77939150 is about 8828.3152413130. The cubic root of 77939150 is about 427.1547318796.

The spelling of 77939150 in words is "seventy-seven million, nine hundred thirty-nine thousand, one hundred fifty".