87292869 has 16 divisors (see below), whose sum is σ = 120422400. Its totient is φ = 56188080.

The previous prime is 87292853. The next prime is 87292901. The reversal of 87292869 is 96829278.

It is a happy number.

It is not a de Polignac number, because 87292869 - 2⁴ = 87292853 is a prime.

It is a super-2 number, since 2×87292869² = 15240089956502322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87292819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54924 + ... + 56490.

It is an arithmetic number, because the mean of its divisors is an integer number (7526400).

Almost surely, 2^87292869 is an apocalyptic number.

It is an amenable number.

87292869 is a deficient number, since it is larger than the sum of its proper divisors (33129531).

87292869 is a wasteful number, since it uses less digits than its factorization.

87292869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200.

The product of its digits is 870912, while the sum is 51.

The square root of 87292869 is about 9343.0652892934. The cubic root of 87292869 is about 443.6014146717.

The spelling of 87292869 in words is "eighty-seven million, two hundred ninety-two thousand, eight hundred sixty-nine".