39454999 has 2 divisors, whose sum is σ = 39455000. Its totient is φ = 39454998.

The previous prime is 39454991. The next prime is 39455021. The reversal of 39454999 is 99945493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39454999 - 2³ = 39454991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39454991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19727499 + 19727500.

It is an arithmetic number, because the mean of its divisors is an integer number (19727500).

Almost surely, 2^39454999 is an apocalyptic number.

39454999 is a deficient number, since it is larger than the sum of its proper divisors (1).

39454999 is an equidigital number, since it uses as much as digits as its factorization.

39454999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The square root of 39454999 is about 6281.3214374047. The cubic root of 39454999 is about 340.4348501765.

The spelling of 39454999 in words is "thirty-nine million, four hundred fifty-four thousand, nine hundred ninety-nine".