86510951 has 2 divisors, whose sum is σ = 86510952. Its totient is φ = 86510950.

The previous prime is 86510947. The next prime is 86510953. The reversal of 86510951 is 15901568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86510951 - 2² = 86510947 is a prime.

Together with 86510953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86510953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43255475 + 43255476.

It is an arithmetic number, because the mean of its divisors is an integer number (43255476).

Almost surely, 2^86510951 is an apocalyptic number.

86510951 is a deficient number, since it is larger than the sum of its proper divisors (1).

86510951 is an equidigital number, since it uses as much as digits as its factorization.

86510951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 86510951 is about 9301.1263296442. The cubic root of 86510951 is about 442.2729336048.

The spelling of 86510951 in words is "eighty-six million, five hundred ten thousand, nine hundred fifty-one".