87797292 has 24 divisors (see below), whose sum is σ = 223484352. Its totient is φ = 26605200.

The previous prime is 87797273. The next prime is 87797293. The reversal of 87797292 is 29279778.

It is not an unprimeable number, because it can be changed into a prime (87797293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332434 + ... + 332697.

It is an arithmetic number, because the mean of its divisors is an integer number (9311848).

Almost surely, 2^87797292 is an apocalyptic number.

It is an amenable number.

87797292 is an abundant number, since it is smaller than the sum of its proper divisors (135687060).

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

87797292 is a wasteful number, since it uses less digits than its factorization.

87797292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665149 (or 665147 counting only the distinct ones).

The product of its digits is 889056, while the sum is 51.

The square root of 87797292 is about 9370.0209177995. The cubic root of 87797292 is about 444.4542263310.

The spelling of 87797292 in words is "eighty-seven million, seven hundred ninety-seven thousand, two hundred ninety-two".