77952894 has 16 divisors (see below), whose sum is σ = 159532032. Its totient is φ = 25379928.

The previous prime is 77952881. The next prime is 77952907. The reversal of 77952894 is 49825977.

It is an interprime number because it is at equal distance from previous prime (77952881) and next prime (77952907).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150814 + ... + 151329.

It is an arithmetic number, because the mean of its divisors is an integer number (9970752).

Almost surely, 2^77952894 is an apocalyptic number.

77952894 is an abundant number, since it is smaller than the sum of its proper divisors (81579138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77952894 is a wasteful number, since it uses less digits than its factorization.

77952894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302191.

The product of its digits is 1270080, while the sum is 51.

The square root of 77952894 is about 8829.0936114643. The cubic root of 77952894 is about 427.1798389432.

The spelling of 77952894 in words is "seventy-seven million, nine hundred fifty-two thousand, eight hundred ninety-four".