87820496 has 20 divisors (see below), whose sum is σ = 170889732. Its totient is φ = 43719936.

The previous prime is 87820493. The next prime is 87820501. The reversal of 87820496 is 69402878.

It can be written as a sum of positive squares in 2 ways, for example, as 5664400 + 82156096 = 2380^2 + 9064^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87820493) 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, 8051 + ... + 15506.

Almost surely, 2^87820496 is an apocalyptic number.

It is an amenable number.

87820496 is a deficient number, since it is larger than the sum of its proper divisors (83069236).

87820496 is a wasteful number, since it uses less digits than its factorization.

87820496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23798 (or 23792 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 87820496 is about 9371.2590402784. The cubic root of 87820496 is about 444.4933779085.

The spelling of 87820496 in words is "eighty-seven million, eight hundred twenty thousand, four hundred ninety-six".