39704090 has 8 divisors (see below), whose sum is σ = 71467380. Its totient is φ = 15881632.

The previous prime is 39704047. The next prime is 39704101. The reversal of 39704090 is 9040793.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32569849 + 7134241 = 5707^2 + 2671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985195 + ... + 1985214.

Almost surely, 2^39704090 is an apocalyptic number.

39704090 is a deficient number, since it is larger than the sum of its proper divisors (31763290).

39704090 is a wasteful number, since it uses less digits than its factorization.

39704090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970416.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 39704090 is about 6301.1181547405. The cubic root of 39704090 is about 341.1497695233.

The spelling of 39704090 in words is "thirty-nine million, seven hundred four thousand, ninety".