87955978 has 16 divisors (see below), whose sum is σ = 151503840. Its totient is φ = 37875600.

The previous prime is 87955939. The next prime is 87955981.

87955978 is nontrivially palindromic in base 10.

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, 104793 + ... + 105628.

It is an arithmetic number, because the mean of its divisors is an integer number (9468990).

Almost surely, 2^87955978 is an apocalyptic number.

87955978 is a deficient number, since it is larger than the sum of its proper divisors (63547862).

87955978 is a wasteful number, since it uses less digits than its factorization.

87955978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210453.

The product of its digits is 6350400, while the sum is 58.

The square root of 87955978 is about 9378.4848456454. The cubic root of 87955978 is about 444.7218360066.

The spelling of 87955978 in words is "eighty-seven million, nine hundred fifty-five thousand, nine hundred seventy-eight".