39490699 has 2 divisors, whose sum is σ = 39490700. Its totient is φ = 39490698.

The previous prime is 39490679. The next prime is 39490723. The reversal of 39490699 is 99609493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39490699 - 2⁷ = 39490571 is a prime.

It is not a weakly prime, because it can be changed into another prime (39490679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19745349 + 19745350.

It is an arithmetic number, because the mean of its divisors is an integer number (19745350).

Almost surely, 2^39490699 is an apocalyptic number.

39490699 is a deficient number, since it is larger than the sum of its proper divisors (1).

39490699 is an equidigital number, since it uses as much as digits as its factorization.

39490699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 39490699 is about 6284.1625535946. The cubic root of 39490699 is about 340.5374975865.

The spelling of 39490699 in words is "thirty-nine million, four hundred ninety thousand, six hundred ninety-nine".