99979746 has 8 divisors (see below), whose sum is σ = 199959504. Its totient is φ = 33326580.

The previous prime is 99979741. The next prime is 99979751. The reversal of 99979746 is 64797999.

It is an interprime number because it is at equal distance from previous prime (99979741) and next prime (99979751).

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

99979746 is an admirable number.

It is a super-2 number, since 2×99979746² = 19991899220449032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99979746.

It is not an unprimeable number, because it can be changed into a prime (99979741) 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, 8331640 + ... + 8331651.

It is an arithmetic number, because the mean of its divisors is an integer number (24994938).

Almost surely, 2^99979746 is an apocalyptic number.

99979746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99979746 is a wasteful number, since it uses less digits than its factorization.

99979746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16663296.

The product of its digits is 7715736, while the sum is 60.

The square root of 99979746 is about 9998.9872487167. The cubic root of 99979746 is about 464.1275443320.

The spelling of 99979746 in words is "ninety-nine million, nine hundred seventy-nine thousand, seven hundred forty-six".