39880965 has 16 divisors (see below), whose sum is σ = 66584448. Its totient is φ = 20344896.

The previous prime is 39880937. The next prime is 39880969. The reversal of 39880965 is 56908893.

It is not a de Polignac number, because 39880965 - 2¹² = 39876869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39880969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57454 + ... + 58143.

It is an arithmetic number, because the mean of its divisors is an integer number (4161528).

Almost surely, 2^39880965 is an apocalyptic number.

It is an amenable number.

39880965 is a deficient number, since it is larger than the sum of its proper divisors (26703483).

39880965 is a wasteful number, since it uses less digits than its factorization.

39880965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115628.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 39880965 is about 6315.1377657182. The cubic root of 39880965 is about 341.6556072830.

The spelling of 39880965 in words is "thirty-nine million, eight hundred eighty thousand, nine hundred sixty-five".