99012479 has 2 divisors, whose sum is σ = 99012480. Its totient is φ = 99012478.

The previous prime is 99012451. The next prime is 99012491. The reversal of 99012479 is 97421099.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99012479 - 2²⁰ = 97963903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99012449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49506239 + 49506240.

It is an arithmetic number, because the mean of its divisors is an integer number (49506240).

Almost surely, 2^99012479 is an apocalyptic number.

99012479 is a deficient number, since it is larger than the sum of its proper divisors (1).

99012479 is an equidigital number, since it uses as much as digits as its factorization.

99012479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 99012479 is about 9950.5014446509. The cubic root of 99012479 is about 462.6259373627.

The spelling of 99012479 in words is "ninety-nine million, twelve thousand, four hundred seventy-nine".