87872953 has 4 divisors (see below), whose sum is σ = 100426240. Its totient is φ = 75319668.

The previous prime is 87872923. The next prime is 87872957. The reversal of 87872953 is 35927878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87872953 - 2²⁵ = 54318521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87872897 and 87872906.

It is not an unprimeable number, because it can be changed into a prime (87872957) 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, 6276633 + ... + 6276646.

It is an arithmetic number, because the mean of its divisors is an integer number (25106560).

Almost surely, 2^87872953 is an apocalyptic number.

It is an amenable number.

87872953 is a deficient number, since it is larger than the sum of its proper divisors (12553287).

87872953 is a wasteful number, since it uses less digits than its factorization.

87872953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12553286.

The product of its digits is 846720, while the sum is 49.

The square root of 87872953 is about 9374.0574459516. The cubic root of 87872953 is about 444.5818619914.

The spelling of 87872953 in words is "eighty-seven million, eight hundred seventy-two thousand, nine hundred fifty-three".