87626869 has 12 divisors (see below), whose sum is σ = 96640992. Its totient is φ = 79393160.

The previous prime is 87626843. The next prime is 87626887. The reversal of 87626869 is 96862678.

It is not a de Polignac number, because 87626869 - 2¹¹ = 87624821 is a prime.

It is a super-2 number, since 2×87626869² = 15356936341486322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87626809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40944 + ... + 43030.

It is an arithmetic number, because the mean of its divisors is an integer number (8053416).

Almost surely, 2^87626869 is an apocalyptic number.

It is an amenable number.

87626869 is a deficient number, since it is larger than the sum of its proper divisors (9014123).

87626869 is a wasteful number, since it uses less digits than its factorization.

87626869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456 (or 2445 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 87626869 is about 9360.9224438620. The cubic root of 87626869 is about 444.1664639054.

The spelling of 87626869 in words is "eighty-seven million, six hundred twenty-six thousand, eight hundred sixty-nine".