87353861 has 4 divisors (see below), whose sum is σ = 99832992. Its totient is φ = 74874732.

The previous prime is 87353857. The next prime is 87353867. The reversal of 87353861 is 16835378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87353861 - 2² = 87353857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87353867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6239555 + ... + 6239568.

It is an arithmetic number, because the mean of its divisors is an integer number (24958248).

Almost surely, 2^87353861 is an apocalyptic number.

It is an amenable number.

87353861 is a deficient number, since it is larger than the sum of its proper divisors (12479131).

87353861 is a wasteful number, since it uses less digits than its factorization.

87353861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12479130.

The product of its digits is 120960, while the sum is 41.

The square root of 87353861 is about 9346.3287444857. The cubic root of 87353861 is about 443.7047061883.

The spelling of 87353861 in words is "eighty-seven million, three hundred fifty-three thousand, eight hundred sixty-one".