87729292 has 24 divisors (see below), whose sum is σ = 181510560. Its totient is φ = 36301440.

The previous prime is 87729281. The next prime is 87729293. The reversal of 87729292 is 29292778.

It is not an unprimeable number, because it can be changed into a prime (87729293) 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, 53209 + ... + 54832.

It is an arithmetic number, because the mean of its divisors is an integer number (7562940).

Almost surely, 2^87729292 is an apocalyptic number.

It is an amenable number.

87729292 is an abundant number, since it is smaller than the sum of its proper divisors (93781268).

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

87729292 is a wasteful number, since it uses less digits than its factorization.

87729292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108081 (or 108079 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 87729292 is about 9366.3916211100. The cubic root of 87729292 is about 444.3394517454.

The spelling of 87729292 in words is "eighty-seven million, seven hundred twenty-nine thousand, two hundred ninety-two".