77394148 has 24 divisors (see below), whose sum is σ = 148966272. Its totient is φ = 34959264.

The previous prime is 77394137. The next prime is 77394173. The reversal of 77394148 is 84149377.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13390 + ... + 18277.

It is an arithmetic number, because the mean of its divisors is an integer number (6206928).

Almost surely, 2^77394148 is an apocalyptic number.

It is an amenable number.

77394148 is a deficient number, since it is larger than the sum of its proper divisors (71572124).

77394148 is a wasteful number, since it uses less digits than its factorization.

77394148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31731 (or 31729 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 77394148 is about 8797.3943869762. The cubic root of 77394148 is about 426.1567527641.

The spelling of 77394148 in words is "seventy-seven million, three hundred ninety-four thousand, one hundred forty-eight".