91700867 has 2 divisors, whose sum is σ = 91700868. Its totient is φ = 91700866.

The previous prime is 91700863. The next prime is 91700891. The reversal of 91700867 is 76800719.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91700867 - 2² = 91700863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91700867.

It is not a weakly prime, because it can be changed into another prime (91700863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45850433 + 45850434.

It is an arithmetic number, because the mean of its divisors is an integer number (45850434).

Almost surely, 2^91700867 is an apocalyptic number.

91700867 is a deficient number, since it is larger than the sum of its proper divisors (1).

91700867 is an equidigital number, since it uses as much as digits as its factorization.

91700867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 91700867 is about 9576.0569651606. The cubic root of 91700867 is about 450.9459393775.

The spelling of 91700867 in words is "ninety-one million, seven hundred thousand, eight hundred sixty-seven".