94128589 has 2 divisors, whose sum is σ = 94128590. Its totient is φ = 94128588.

The previous prime is 94128547. The next prime is 94128599. The reversal of 94128589 is 98582149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65076489 + 29052100 = 8067^2 + 5390^2 .

It is a cyclic number.

It is not a de Polignac number, because 94128589 - 2¹⁷ = 93997517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94128599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47064294 + 47064295.

It is an arithmetic number, because the mean of its divisors is an integer number (47064295).

Almost surely, 2^94128589 is an apocalyptic number.

It is an amenable number.

94128589 is a deficient number, since it is larger than the sum of its proper divisors (1).

94128589 is an equidigital number, since it uses as much as digits as its factorization.

94128589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 46.

The square root of 94128589 is about 9701.9889198040. The cubic root of 94128589 is about 454.8908307907.

The spelling of 94128589 in words is "ninety-four million, one hundred twenty-eight thousand, five hundred eighty-nine".