87243626 has 8 divisors (see below), whose sum is σ = 138563460. Its totient is φ = 41055808.

The previous prime is 87243619. The next prime is 87243659. The reversal of 87243626 is 62634278.

It can be written as a sum of positive squares in 2 ways, for example, as 81884401 + 5359225 = 9049^2 + 2315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87243626² = 15222900555255752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87243626.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282961 + ... + 1283028.

Almost surely, 2^87243626 is an apocalyptic number.

87243626 is a deficient number, since it is larger than the sum of its proper divisors (51319834).

87243626 is a wasteful number, since it uses less digits than its factorization.

87243626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566008.

The product of its digits is 96768, while the sum is 38.

The square root of 87243626 is about 9340.4296475055. The cubic root of 87243626 is about 443.5179852784.

The spelling of 87243626 in words is "eighty-seven million, two hundred forty-three thousand, six hundred twenty-six".