77908093 has 16 divisors (see below), whose sum is σ = 84789504. Its totient is φ = 71303680.

The previous prime is 77908081. The next prime is 77908097. The reversal of 77908093 is 39080977.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77908093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77908097) 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 15 ways as a sum of consecutive naturals, for example, 224346 + ... + 224692.

It is an arithmetic number, because the mean of its divisors is an integer number (5299344).

Almost surely, 2^77908093 is an apocalyptic number.

It is an amenable number.

77908093 is a deficient number, since it is larger than the sum of its proper divisors (6881411).

77908093 is a wasteful number, since it uses less digits than its factorization.

77908093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 77908093 is about 8826.5561234266. The cubic root of 77908093 is about 427.0979871543.

The spelling of 77908093 in words is "seventy-seven million, nine hundred eight thousand, ninety-three".