86626031 has 4 divisors (see below), whose sum is σ = 86662200. Its totient is φ = 86589864.

The previous prime is 86626013. The next prime is 86626061. The reversal of 86626031 is 13062668.

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 86626031 - 2⁶ = 86625967 is a prime.

It is a super-2 number, since 2×86626031² = 15008138493625922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86626061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14216 + ... + 19373.

It is an arithmetic number, because the mean of its divisors is an integer number (21665550).

Almost surely, 2^86626031 is an apocalyptic number.

86626031 is a deficient number, since it is larger than the sum of its proper divisors (36169).

86626031 is a wasteful number, since it uses less digits than its factorization.

86626031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36168.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 86626031 is about 9307.3106212267. The cubic root of 86626031 is about 442.4689558695.

Adding to 86626031 its reverse (13062668), we get a palindrome (99688699).

The spelling of 86626031 in words is "eighty-six million, six hundred twenty-six thousand, thirty-one".