77955148 has 6 divisors (see below), whose sum is σ = 136421516. Its totient is φ = 38977572.

The previous prime is 77955139. The next prime is 77955151. The reversal of 77955148 is 84155977.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77955098 and 77955107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9744390 + ... + 9744397.

Almost surely, 2^77955148 is an apocalyptic number.

It is an amenable number.

77955148 is a deficient number, since it is larger than the sum of its proper divisors (58466368).

77955148 is a wasteful number, since it uses less digits than its factorization.

77955148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19488791 (or 19488789 counting only the distinct ones).

The product of its digits is 352800, while the sum is 46.

The square root of 77955148 is about 8829.2212567134. The cubic root of 77955148 is about 427.1839561907.

The spelling of 77955148 in words is "seventy-seven million, nine hundred fifty-five thousand, one hundred forty-eight".