94400989 has 4 divisors (see below), whose sum is σ = 94422400. Its totient is φ = 94379580.

The previous prime is 94400959. The next prime is 94401001. The reversal of 94400989 is 98900449.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 94400989 - 2⁷ = 94400861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94400909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389 + ... + 13810.

It is an arithmetic number, because the mean of its divisors is an integer number (23605600).

Almost surely, 2^94400989 is an apocalyptic number.

It is an amenable number.

94400989 is a deficient number, since it is larger than the sum of its proper divisors (21411).

94400989 is a wasteful number, since it uses less digits than its factorization.

94400989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21410.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 94400989 is about 9716.0171366666. The cubic root of 94400989 is about 455.3292130965.

The spelling of 94400989 in words is "ninety-four million, four hundred thousand, nine hundred eighty-nine".