94047989 has 16 divisors (see below), whose sum is σ = 112492800. Its totient is φ = 76876800.

The previous prime is 94047977. The next prime is 94048001. The reversal of 94047989 is 98974049.

It is an interprime number because it is at equal distance from previous prime (94047977) and next prime (94048001).

It is a de Polignac number, because none of the positive numbers 2^k-94047989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94047959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71639 + ... + 72939.

It is an arithmetic number, because the mean of its divisors is an integer number (7030800).

Almost surely, 2^94047989 is an apocalyptic number.

It is an amenable number.

94047989 is a deficient number, since it is larger than the sum of its proper divisors (18444811).

94047989 is a wasteful number, since it uses less digits than its factorization.

94047989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 94047989 is about 9697.8342427575. The cubic root of 94047989 is about 454.7609564305.

The spelling of 94047989 in words is "ninety-four million, forty-seven thousand, nine hundred eighty-nine".