87860051 has 4 divisors (see below), whose sum is σ = 89903352. Its totient is φ = 85816752.

The previous prime is 87860033. The next prime is 87860057. The reversal of 87860051 is 15006878.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87860051 - 2¹⁴ = 87843667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87859993 and 87860020.

It is not an unprimeable number, because it can be changed into a prime (87860057) 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, 1021586 + ... + 1021671.

It is an arithmetic number, because the mean of its divisors is an integer number (22475838).

Almost surely, 2^87860051 is an apocalyptic number.

87860051 is a deficient number, since it is larger than the sum of its proper divisors (2043301).

87860051 is a wasteful number, since it uses less digits than its factorization.

87860051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043300.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 87860051 is about 9373.3692448340. The cubic root of 87860051 is about 444.5601022585.

The spelling of 87860051 in words is "eighty-seven million, eight hundred sixty thousand, fifty-one".