86895947 has 2 divisors, whose sum is σ = 86895948. Its totient is φ = 86895946.

The previous prime is 86895929. The next prime is 86896003. The reversal of 86895947 is 74959868.

It is an a-pointer prime, because the next prime (86896003) can be obtained adding 86895947 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86895947 - 2¹² = 86891851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86895892 and 86895901.

It is not a weakly prime, because it can be changed into another prime (86895917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43447973 + 43447974.

It is an arithmetic number, because the mean of its divisors is an integer number (43447974).

Almost surely, 2^86895947 is an apocalyptic number.

86895947 is a deficient number, since it is larger than the sum of its proper divisors (1).

86895947 is an equidigital number, since it uses as much as digits as its factorization.

86895947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 56.

The square root of 86895947 is about 9321.7995580253. The cubic root of 86895947 is about 442.9280389000.

The spelling of 86895947 in words is "eighty-six million, eight hundred ninety-five thousand, nine hundred forty-seven".