87790233 has 24 divisors (see below), whose sum is σ = 124371264. Its totient is φ = 55041120.

The previous prime is 87790231. The next prime is 87790247. The reversal of 87790233 is 33209778.

It is not a de Polignac number, because 87790233 - 2¹ = 87790231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87790191 and 87790200.

It is not an unprimeable number, because it can be changed into a prime (87790231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106260 + ... + 107082.

It is an arithmetic number, because the mean of its divisors is an integer number (5182136).

Almost surely, 2^87790233 is an apocalyptic number.

It is an amenable number.

87790233 is a deficient number, since it is larger than the sum of its proper divisors (36581031).

87790233 is a wasteful number, since it uses less digits than its factorization.

87790233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 87790233 is about 9369.6442301722. The cubic root of 87790233 is about 444.4423144736.

The spelling of 87790233 in words is "eighty-seven million, seven hundred ninety thousand, two hundred thirty-three".