78992895 has 8 divisors (see below), whose sum is σ = 126388656. Its totient is φ = 42129536.

The previous prime is 78992887. The next prime is 78992909. The reversal of 78992895 is 59829987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78992895 - 2³ = 78992887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2633082 + ... + 2633111.

It is an arithmetic number, because the mean of its divisors is an integer number (15798582).

Almost surely, 2^78992895 is an apocalyptic number.

78992895 is a deficient number, since it is larger than the sum of its proper divisors (47395761).

78992895 is a wasteful number, since it uses less digits than its factorization.

78992895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266201.

The product of its digits is 3265920, while the sum is 57.

The square root of 78992895 is about 8887.7947208517. The cubic root of 78992895 is about 429.0711788481.

The spelling of 78992895 in words is "seventy-eight million, nine hundred ninety-two thousand, eight hundred ninety-five".