77936925 has 48 divisors (see below), whose sum is σ = 148865472. Its totient is φ = 35558400.

The previous prime is 77936923. The next prime is 77936927. The reversal of 77936925 is 52963977.

It is an interprime number because it is at equal distance from previous prime (77936923) and next prime (77936927).

It is not a de Polignac number, because 77936925 - 2¹ = 77936923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77936923) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 11247 + ... + 16803.

It is an arithmetic number, because the mean of its divisors is an integer number (3101364).

Almost surely, 2^77936925 is an apocalyptic number.

77936925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77936925 is a deficient number, since it is larger than the sum of its proper divisors (70928547).

77936925 is a wasteful number, since it uses less digits than its factorization.

77936925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598 (or 5593 counting only the distinct ones).

The product of its digits is 714420, while the sum is 48.

The square root of 77936925 is about 8828.1892254301. The cubic root of 77936925 is about 427.1506670491.

The spelling of 77936925 in words is "seventy-seven million, nine hundred thirty-six thousand, nine hundred twenty-five".