87153879 has 4 divisors (see below), whose sum is σ = 116205176. Its totient is φ = 58102584.

The previous prime is 87153863. The next prime is 87153887. The reversal of 87153879 is 97835178.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87153879 - 2⁴ = 87153863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87155879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14525644 + ... + 14525649.

It is an arithmetic number, because the mean of its divisors is an integer number (29051294).

Almost surely, 2^87153879 is an apocalyptic number.

87153879 is a deficient number, since it is larger than the sum of its proper divisors (29051297).

87153879 is a wasteful number, since it uses less digits than its factorization.

87153879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29051296.

The product of its digits is 423360, while the sum is 48.

The square root of 87153879 is about 9335.6241890942. The cubic root of 87153879 is about 443.3658516609.

The spelling of 87153879 in words is "eighty-seven million, one hundred fifty-three thousand, eight hundred seventy-nine".