94290921 has 12 divisors (see below), whose sum is σ = 136393348. Its totient is φ = 62770464.

The previous prime is 94290899. The next prime is 94290923. The reversal of 94290921 is 12909249.

It can be written as a sum of positive squares in 2 ways, for example, as 42968025 + 51322896 = 6555^2 + 7164^2 .

It is not a de Polignac number, because 94290921 - 2²¹ = 92193769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (94290923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550 + ... + 13743.

Almost surely, 2^94290921 is an apocalyptic number.

It is an amenable number.

94290921 is a deficient number, since it is larger than the sum of its proper divisors (42102427).

94290921 is a wasteful number, since it uses less digits than its factorization.

94290921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15032 (or 15029 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 94290921 is about 9710.3512294870. The cubic root of 94290921 is about 455.1521786987.

The spelling of 94290921 in words is "ninety-four million, two hundred ninety thousand, nine hundred twenty-one".