87060031 has 4 divisors (see below), whose sum is σ = 87235000. Its totient is φ = 86885064.

The previous prime is 87060007. The next prime is 87060073. The reversal of 87060031 is 13006078.

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 87060031 - 2¹¹ = 87057983 is a prime.

It is a super-2 number, since 2×87060031² = 15158897995441922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87059978 and 87060005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87060091) 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, 86736 + ... + 87733.

It is an arithmetic number, because the mean of its divisors is an integer number (21808750).

Almost surely, 2^87060031 is an apocalyptic number.

87060031 is a deficient number, since it is larger than the sum of its proper divisors (174969).

87060031 is a wasteful number, since it uses less digits than its factorization.

87060031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174968.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 87060031 is about 9330.5964975451. The cubic root of 87060031 is about 443.2066545303.

The spelling of 87060031 in words is "eighty-seven million, sixty thousand, thirty-one".