87794780 has 24 divisors (see below), whose sum is σ = 185114160. Its totient is φ = 34976000.

The previous prime is 87794767. The next prime is 87794843. The reversal of 87794780 is 8749778.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725 + ... + 13764.

It is an arithmetic number, because the mean of its divisors is an integer number (7713090).

Almost surely, 2^87794780 is an apocalyptic number.

It is an amenable number.

87794780 is an abundant number, since it is smaller than the sum of its proper divisors (97319380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87794780 is a wasteful number, since it uses less digits than its factorization.

87794780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17749 (or 17747 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 87794780 is about 9369.8868723160. The cubic root of 87794780 is about 444.4499874772.

The spelling of 87794780 in words is "eighty-seven million, seven hundred ninety-four thousand, seven hundred eighty".