94247991 has 12 divisors (see below), whose sum is σ = 139815832. Its totient is φ = 61133616.

The previous prime is 94247981. The next prime is 94248001. The reversal of 94247991 is 19974249.

It is a happy number.

94247991 is a `hidden beast` number, since 94 + 2 + 479 + 91 = 666.

It is an interprime number because it is at equal distance from previous prime (94247981) and next prime (94248001).

It is not a de Polignac number, because 94247991 - 2⁷ = 94247863 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 (94247921) 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, 141181 + ... + 141846.

Almost surely, 2^94247991 is an apocalyptic number.

94247991 is a deficient number, since it is larger than the sum of its proper divisors (45567841).

94247991 is a wasteful number, since it uses less digits than its factorization.

94247991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283070 (or 283067 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 94247991 is about 9708.1404501583. The cubic root of 94247991 is about 455.0830923399.

The spelling of 94247991 in words is "ninety-four million, two hundred forty-seven thousand, nine hundred ninety-one".