94020391 has 2 divisors, whose sum is σ = 94020392. Its totient is φ = 94020390.

The previous prime is 94020383. The next prime is 94020397. The reversal of 94020391 is 19302049.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94020391 - 2³ = 94020383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94020397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47010195 + 47010196.

It is an arithmetic number, because the mean of its divisors is an integer number (47010196).

Almost surely, 2^94020391 is an apocalyptic number.

94020391 is a deficient number, since it is larger than the sum of its proper divisors (1).

94020391 is an equidigital number, since it uses as much as digits as its factorization.

94020391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 94020391 is about 9696.4112433415. The cubic root of 94020391 is about 454.7164694941.

The spelling of 94020391 in words is "ninety-four million, twenty thousand, three hundred ninety-one".