94212921 has 16 divisors (see below), whose sum is σ = 139085568. Its totient is φ = 56245200.

The previous prime is 94212919. The next prime is 94212931. The reversal of 94212921 is 12921249.

It is a happy number.

It is not a de Polignac number, because 94212921 - 2¹ = 94212919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (94212931) 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, 19095 + ... + 23516.

It is an arithmetic number, because the mean of its divisors is an integer number (8692848).

Almost surely, 2^94212921 is an apocalyptic number.

It is an amenable number.

94212921 is a deficient number, since it is larger than the sum of its proper divisors (44872647).

94212921 is a wasteful number, since it uses less digits than its factorization.

94212921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42692.

The product of its digits is 2592, while the sum is 30.

The square root of 94212921 is about 9706.3340659592. The cubic root of 94212921 is about 455.0266393452.

The spelling of 94212921 in words is "ninety-four million, two hundred twelve thousand, nine hundred twenty-one".