86311005 has 16 divisors (see below), whose sum is σ = 150652224. Its totient is φ = 41847680.

The previous prime is 86311003. The next prime is 86311007. The reversal of 86311005 is 50011368.

It is an interprime number because it is at equal distance from previous prime (86311003) and next prime (86311007).

It is not a de Polignac number, because 86311005 - 2¹ = 86311003 is a prime.

It is a super-2 number, since 2×86311005² = 14899179168220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86311003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261384 + ... + 261713.

It is an arithmetic number, because the mean of its divisors is an integer number (9415764).

Almost surely, 2^86311005 is an apocalyptic number.

It is an amenable number.

86311005 is a deficient number, since it is larger than the sum of its proper divisors (64341219).

86311005 is a wasteful number, since it uses less digits than its factorization.

86311005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523116.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 86311005 is about 9290.3716287348. The cubic root of 86311005 is about 441.9319404772.

The spelling of 86311005 in words is "eighty-six million, three hundred eleven thousand, five".