78885087 has 8 divisors (see below), whose sum is σ = 105259440. Its totient is φ = 52550400.

The previous prime is 78885071. The next prime is 78885097. The reversal of 78885087 is 78058887.

It is a happy number.

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

It is not a de Polignac number, because 78885087 - 2⁴ = 78885071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78885007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4914 + ... + 13487.

It is an arithmetic number, because the mean of its divisors is an integer number (13157430).

Almost surely, 2^78885087 is an apocalyptic number.

78885087 is a deficient number, since it is larger than the sum of its proper divisors (26374353).

78885087 is a wasteful number, since it uses less digits than its factorization.

78885087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19833.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The square root of 78885087 is about 8881.7277035496. The cubic root of 78885087 is about 428.8758939206.

The spelling of 78885087 in words is "seventy-eight million, eight hundred eighty-five thousand, eighty-seven".