94619891 has 2 divisors, whose sum is σ = 94619892. Its totient is φ = 94619890.

The previous prime is 94619887. The next prime is 94619897. The reversal of 94619891 is 19891649.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 94619891 - 2² = 94619887 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (94619897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47309945 + 47309946.

It is an arithmetic number, because the mean of its divisors is an integer number (47309946).

Almost surely, 2^94619891 is an apocalyptic number.

94619891 is a deficient number, since it is larger than the sum of its proper divisors (1).

94619891 is an equidigital number, since it uses as much as digits as its factorization.

94619891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 47.

The square root of 94619891 is about 9727.2756206453. The cubic root of 94619891 is about 455.6808885525.

The spelling of 94619891 in words is "ninety-four million, six hundred nineteen thousand, eight hundred ninety-one".