87199023 has 8 divisors (see below), whose sum is σ = 117464368. Its totient is φ = 57533184.

The previous prime is 87198997. The next prime is 87199031. The reversal of 87199023 is 32099178.

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

It is not a de Polignac number, because 87199023 - 2⁸ = 87198767 is a prime.

It is a super-2 number, since 2×87199023² = 15207339224309058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87199043) 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, 149536 + ... + 150117.

It is an arithmetic number, because the mean of its divisors is an integer number (14683046).

Almost surely, 2^87199023 is an apocalyptic number.

87199023 is a deficient number, since it is larger than the sum of its proper divisors (30265345).

87199023 is a wasteful number, since it uses less digits than its factorization.

87199023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299753.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 87199023 is about 9338.0417111941. The cubic root of 87199023 is about 443.4423900525.

The spelling of 87199023 in words is "eighty-seven million, one hundred ninety-nine thousand, twenty-three".