87872207 has 4 divisors (see below), whose sum is σ = 92497080. Its totient is φ = 83247336.

The previous prime is 87872179. The next prime is 87872209. The reversal of 87872207 is 70227878.

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 87872207 - 2⁸ = 87871951 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 (87872209) 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, 2312408 + ... + 2312445.

It is an arithmetic number, because the mean of its divisors is an integer number (23124270).

Almost surely, 2^87872207 is an apocalyptic number.

87872207 is a deficient number, since it is larger than the sum of its proper divisors (4624873).

87872207 is a wasteful number, since it uses less digits than its factorization.

87872207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624872.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 87872207 is about 9374.0176551999. The cubic root of 87872207 is about 444.5806038909.

The spelling of 87872207 in words is "eighty-seven million, eight hundred seventy-two thousand, two hundred seven".