94757221 has 4 divisors (see below), whose sum is σ = 102046252. Its totient is φ = 87468192.

The previous prime is 94757213. The next prime is 94757227. The reversal of 94757221 is 12275749.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12275749 = 37 ⋅331777.

It can be written as a sum of positive squares in 2 ways, for example, as 36784225 + 57972996 = 6065^2 + 7614^2 .

It is a cyclic number.

It is not a de Polignac number, because 94757221 - 2³ = 94757213 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 (94757227) 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, 3644496 + ... + 3644521.

It is an arithmetic number, because the mean of its divisors is an integer number (25511563).

Almost surely, 2^94757221 is an apocalyptic number.

It is an amenable number.

94757221 is a deficient number, since it is larger than the sum of its proper divisors (7289031).

94757221 is a wasteful number, since it uses less digits than its factorization.

94757221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289030.

The product of its digits is 35280, while the sum is 37.

The square root of 94757221 is about 9734.3320777545. The cubic root of 94757221 is about 455.9012382939.

The spelling of 94757221 in words is "ninety-four million, seven hundred fifty-seven thousand, two hundred twenty-one".