87992193 has 4 divisors (see below), whose sum is σ = 117322928. Its totient is φ = 58661460.

The previous prime is 87992183. The next prime is 87992197. The reversal of 87992193 is 39129978.

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 not a de Polignac number, because 87992193 - 2⁵ = 87992161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87992197) 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, 14665363 + ... + 14665368.

It is an arithmetic number, because the mean of its divisors is an integer number (29330732).

Almost surely, 2^87992193 is an apocalyptic number.

It is an amenable number.

87992193 is a deficient number, since it is larger than the sum of its proper divisors (29330735).

87992193 is a wasteful number, since it uses less digits than its factorization.

87992193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29330734.

The product of its digits is 244944, while the sum is 48.

The square root of 87992193 is about 9380.4153959193. The cubic root of 87992193 is about 444.7828642305.

The spelling of 87992193 in words is "eighty-seven million, nine hundred ninety-two thousand, one hundred ninety-three".