94021817 has 2 divisors, whose sum is σ = 94021818. Its totient is φ = 94021816.

The previous prime is 94021813. The next prime is 94021843. The reversal of 94021817 is 71812049.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64818601 + 29203216 = 8051^2 + 5404^2 .

It is a cyclic number.

It is not a de Polignac number, because 94021817 - 2² = 94021813 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94021813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47010908 + 47010909.

It is an arithmetic number, because the mean of its divisors is an integer number (47010909).

Almost surely, 2^94021817 is an apocalyptic number.

It is an amenable number.

94021817 is a deficient number, since it is larger than the sum of its proper divisors (1).

94021817 is an equidigital number, since it uses as much as digits as its factorization.

94021817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 94021817 is about 9696.4847754225. The cubic root of 94021817 is about 454.7187683657.

The spelling of 94021817 in words is "ninety-four million, twenty-one thousand, eight hundred seventeen".