94431021 has 8 divisors (see below), whose sum is σ = 126742464. Its totient is φ = 62536800.

The previous prime is 94431019. The next prime is 94431023. The reversal of 94431021 is 12013449.

It is an interprime number because it is at equal distance from previous prime (94431019) and next prime (94431023).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 94431021 - 2¹ = 94431019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 94430982 and 94431000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94431023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103776 + ... + 104681.

It is an arithmetic number, because the mean of its divisors is an integer number (15842808).

Almost surely, 2^94431021 is an apocalyptic number.

It is an amenable number.

94431021 is a deficient number, since it is larger than the sum of its proper divisors (32311443).

94431021 is a wasteful number, since it uses less digits than its factorization.

94431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208611.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 94431021 is about 9717.5625030148. The cubic root of 94431021 is about 455.3774929476.

The spelling of 94431021 in words is "ninety-four million, four hundred thirty-one thousand, twenty-one".