39980711 has 2 divisors, whose sum is σ = 39980712. Its totient is φ = 39980710.

The previous prime is 39980687. The next prime is 39980737. The reversal of 39980711 is 11708993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39980711 - 2²² = 35786407 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39980741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19990355 + 19990356.

It is an arithmetic number, because the mean of its divisors is an integer number (19990356).

Almost surely, 2^39980711 is an apocalyptic number.

39980711 is a deficient number, since it is larger than the sum of its proper divisors (1).

39980711 is an equidigital number, since it uses as much as digits as its factorization.

39980711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 39980711 is about 6323.0302071080. The cubic root of 39980711 is about 341.9402076198.

The spelling of 39980711 in words is "thirty-nine million, nine hundred eighty thousand, seven hundred eleven".