87373793 has 4 divisors (see below), whose sum is σ = 94094868. Its totient is φ = 80652720.

The previous prime is 87373789. The next prime is 87373801. The reversal of 87373793 is 39737378.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44182609 + 43191184 = 6647^2 + 6572^2 .

It is a cyclic number.

It is not a de Polignac number, because 87373793 - 2² = 87373789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87373753) 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, 3360518 + ... + 3360543.

It is an arithmetic number, because the mean of its divisors is an integer number (23523717).

Almost surely, 2^87373793 is an apocalyptic number.

It is an amenable number.

87373793 is a deficient number, since it is larger than the sum of its proper divisors (6721075).

87373793 is a wasteful number, since it uses less digits than its factorization.

87373793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721074.

The product of its digits is 666792, while the sum is 47.

The square root of 87373793 is about 9347.3949847003. The cubic root of 87373793 is about 443.7384511178.

The spelling of 87373793 in words is "eighty-seven million, three hundred seventy-three thousand, seven hundred ninety-three".