86704051 has 4 divisors (see below), whose sum is σ = 99090352. Its totient is φ = 74317752.

The previous prime is 86704021. The next prime is 86704073. The reversal of 86704051 is 15040768.

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 86704051 - 2¹⁵ = 86671283 is a prime.

It is a super-3 number, since 3×86704051³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86704021) 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, 6193140 + ... + 6193153.

It is an arithmetic number, because the mean of its divisors is an integer number (24772588).

Almost surely, 2^86704051 is an apocalyptic number.

86704051 is a deficient number, since it is larger than the sum of its proper divisors (12386301).

86704051 is a wasteful number, since it uses less digits than its factorization.

86704051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12386300.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 86704051 is about 9311.5010068195. The cubic root of 86704051 is about 442.6017530160.

It can be divided in two parts, 8670 and 4051, that added together give a palindrome (12721).

The spelling of 86704051 in words is "eighty-six million, seven hundred four thousand, fifty-one".