39680794 has 4 divisors (see below), whose sum is σ = 59521194. Its totient is φ = 19840396.

The previous prime is 39680791. The next prime is 39680807. The reversal of 39680794 is 49708693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39225169 + 455625 = 6263^2 + 675^2 .

It is not an unprimeable number, because it can be changed into a prime (39680791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9920197 + ... + 9920200.

Almost surely, 2^39680794 is an apocalyptic number.

39680794 is a deficient number, since it is larger than the sum of its proper divisors (19840400).

39680794 is a wasteful number, since it uses less digits than its factorization.

39680794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19840399.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 39680794 is about 6299.2693227072. The cubic root of 39680794 is about 341.0830343339.

The spelling of 39680794 in words is "thirty-nine million, six hundred eighty thousand, seven hundred ninety-four".