87423167 has 4 divisors (see below), whose sum is σ = 94148040. Its totient is φ = 80698296.

The previous prime is 87423143. The next prime is 87423169. The reversal of 87423167 is 76132478.

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

It is a cyclic number.

It is not a de Polignac number, because 87423167 - 2⁶ = 87423103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87423167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87423169) 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, 3362417 + ... + 3362442.

It is an arithmetic number, because the mean of its divisors is an integer number (23537010).

Almost surely, 2^87423167 is an apocalyptic number.

87423167 is a deficient number, since it is larger than the sum of its proper divisors (6724873).

87423167 is a wasteful number, since it uses less digits than its factorization.

87423167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724872.

The product of its digits is 56448, while the sum is 38.

The square root of 87423167 is about 9350.0356683812. The cubic root of 87423167 is about 443.8220193364.

The spelling of 87423167 in words is "eighty-seven million, four hundred twenty-three thousand, one hundred sixty-seven".