87392953 has 4 divisors (see below), whose sum is σ = 87420928. Its totient is φ = 87364980.

The previous prime is 87392933. The next prime is 87392993. The reversal of 87392953 is 35929378.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35929378 = 2 ⋅17964689.

It is a cyclic number.

It is not a de Polignac number, because 87392953 - 2¹³ = 87384761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87392923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8613 + ... + 15778.

It is an arithmetic number, because the mean of its divisors is an integer number (21855232).

Almost surely, 2^87392953 is an apocalyptic number.

It is an amenable number.

87392953 is a deficient number, since it is larger than the sum of its proper divisors (27975).

87392953 is a wasteful number, since it uses less digits than its factorization.

87392953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27974.

The product of its digits is 408240, while the sum is 46.

The square root of 87392953 is about 9348.4198129951. The cubic root of 87392953 is about 443.7708842118.

It can be divided in two parts, 8 and 7392953, that added together give a square (7392961 = 2719²).

The spelling of 87392953 in words is "eighty-seven million, three hundred ninety-two thousand, nine hundred fifty-three".