86611907 has 2 divisors, whose sum is σ = 86611908. Its totient is φ = 86611906.

The previous prime is 86611897. The next prime is 86611969. The reversal of 86611907 is 70911668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86611907 - 2²² = 82417603 is a prime.

It is not a weakly prime, because it can be changed into another prime (86611807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43305953 + 43305954.

It is an arithmetic number, because the mean of its divisors is an integer number (43305954).

Almost surely, 2^86611907 is an apocalyptic number.

86611907 is a deficient number, since it is larger than the sum of its proper divisors (1).

86611907 is an equidigital number, since it uses as much as digits as its factorization.

86611907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 86611907 is about 9306.5518319085. The cubic root of 86611907 is about 442.4449070121. Note that the first 3 decimals are identical.

The spelling of 86611907 in words is "eighty-six million, six hundred eleven thousand, nine hundred seven".