94397557 has 2 divisors, whose sum is σ = 94397558. Its totient is φ = 94397556.

The previous prime is 94397503. The next prime is 94397579. The reversal of 94397557 is 75579349.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52911076 + 41486481 = 7274^2 + 6441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94397557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 94397557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94397257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47198778 + 47198779.

It is an arithmetic number, because the mean of its divisors is an integer number (47198779).

Almost surely, 2^94397557 is an apocalyptic number.

It is an amenable number.

94397557 is a deficient number, since it is larger than the sum of its proper divisors (1).

94397557 is an equidigital number, since it uses as much as digits as its factorization.

94397557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 49.

The square root of 94397557 is about 9715.8405194816. The cubic root of 94397557 is about 455.3236951148.

The spelling of 94397557 in words is "ninety-four million, three hundred ninety-seven thousand, five hundred fifty-seven".