39979703 has 2 divisors, whose sum is σ = 39979704. Its totient is φ = 39979702.

The previous prime is 39979679. The next prime is 39979711. The reversal of 39979703 is 30797993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39979703 - 2⁸ = 39979447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39979763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19989851 + 19989852.

It is an arithmetic number, because the mean of its divisors is an integer number (19989852).

Almost surely, 2^39979703 is an apocalyptic number.

39979703 is a deficient number, since it is larger than the sum of its proper divisors (1).

39979703 is an equidigital number, since it uses as much as digits as its factorization.

39979703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 321489, while the sum is 47.

The square root of 39979703 is about 6322.9504979875. The cubic root of 39979703 is about 341.9373339122.

The spelling of 39979703 in words is "thirty-nine million, nine hundred seventy-nine thousand, seven hundred three".