39508970 has 16 divisors (see below), whose sum is σ = 73038888. Its totient is φ = 15376320.

The previous prime is 39508967. The next prime is 39508979. The reversal of 39508970 is 7980593.

It can be written as a sum of positive squares in 4 ways, for example, as 39400729 + 108241 = 6277^2 + 329^2 .

It is not an unprimeable number, because it can be changed into a prime (39508979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53021 + ... + 53760.

Almost surely, 2^39508970 is an apocalyptic number.

39508970 is a deficient number, since it is larger than the sum of its proper divisors (33529918).

39508970 is a wasteful number, since it uses less digits than its factorization.

39508970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106825.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 39508970 is about 6285.6161193633. The cubic root of 39508970 is about 340.5900078523.

The spelling of 39508970 in words is "thirty-nine million, five hundred eight thousand, nine hundred seventy".