99976447 has 2 divisors, whose sum is σ = 99976448. Its totient is φ = 99976446.

The previous prime is 99976441. The next prime is 99976451. The reversal of 99976447 is 74467999.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99976447 - 2⁷ = 99976319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99976441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49988223 + 49988224.

It is an arithmetic number, because the mean of its divisors is an integer number (49988224).

Almost surely, 2^99976447 is an apocalyptic number.

99976447 is a deficient number, since it is larger than the sum of its proper divisors (1).

99976447 is an equidigital number, since it uses as much as digits as its factorization.

99976447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 99976447 is about 9998.8222806489. The cubic root of 99976447 is about 464.1224393860.

The spelling of 99976447 in words is "ninety-nine million, nine hundred seventy-six thousand, four hundred forty-seven".