87238611 has 24 divisors (see below), whose sum is σ = 136687824. Its totient is φ = 53399040.

The previous prime is 87238579. The next prime is 87238621. The reversal of 87238611 is 11683278.

87238611 is a `hidden beast` number, since 8 + 7 + 2 + 38 + 611 = 666.

It is not a de Polignac number, because 87238611 - 2⁵ = 87238579 is a prime.

It is a super-2 number, since 2×87238611² = 15221150498418642, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87238621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681 + ... + 13226.

It is an arithmetic number, because the mean of its divisors is an integer number (5695326).

Almost surely, 2^87238611 is an apocalyptic number.

87238611 is a deficient number, since it is larger than the sum of its proper divisors (49449213).

87238611 is a wasteful number, since it uses less digits than its factorization.

87238611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13971 (or 13968 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 87238611 is about 9340.1611870460. The cubic root of 87238611 is about 443.5094869104.

The spelling of 87238611 in words is "eighty-seven million, two hundred thirty-eight thousand, six hundred eleven".