87367031 has 4 divisors (see below), whose sum is σ = 89225952. Its totient is φ = 85508112.

The previous prime is 87367009. The next prime is 87367039. The reversal of 87367031 is 13076378.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87367031 is a prime.

It is a super-2 number, since 2×87367031² = 15265996211509922, 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 = 87366982 and 87367000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87367039) 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, 929390 + ... + 929483.

It is an arithmetic number, because the mean of its divisors is an integer number (22306488).

Almost surely, 2^87367031 is an apocalyptic number.

87367031 is a deficient number, since it is larger than the sum of its proper divisors (1858921).

87367031 is a wasteful number, since it uses less digits than its factorization.

87367031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858920.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 87367031 is about 9347.0332726486. The cubic root of 87367031 is about 443.7270036089.

The spelling of 87367031 in words is "eighty-seven million, three hundred sixty-seven thousand, thirty-one".