99947974 has 16 divisors (see below), whose sum is σ = 171487008. Its totient is φ = 42797952.

The previous prime is 99947941. The next prime is 99947977. The reversal of 99947974 is 47974999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99947977) 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, 19444 + ... + 24040.

It is an arithmetic number, because the mean of its divisors is an integer number (10717938).

Almost surely, 2^99947974 is an apocalyptic number.

99947974 is a deficient number, since it is larger than the sum of its proper divisors (71539034).

99947974 is a wasteful number, since it uses less digits than its factorization.

99947974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6159.

The product of its digits is 5143824, while the sum is 58.

The square root of 99947974 is about 9997.3983615739. The cubic root of 99947974 is about 464.0783749643.

The spelling of 99947974 in words is "ninety-nine million, nine hundred forty-seven thousand, nine hundred seventy-four".