39494657 has 8 divisors (see below), whose sum is σ = 41311296. Its totient is φ = 37686352.

The previous prime is 39494641. The next prime is 39494671. The reversal of 39494657 is 75649493.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 39494657 - 2⁴ = 39494641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39494627) 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, 8903 + ... + 12579.

It is an arithmetic number, because the mean of its divisors is an integer number (5163912).

Almost surely, 2^39494657 is an apocalyptic number.

It is an amenable number.

39494657 is a deficient number, since it is larger than the sum of its proper divisors (1816639).

39494657 is a wasteful number, since it uses less digits than its factorization.

39494657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167.

The product of its digits is 816480, while the sum is 47.

The square root of 39494657 is about 6284.4774643561. The cubic root of 39494657 is about 340.5488741251.

The spelling of 39494657 in words is "thirty-nine million, four hundred ninety-four thousand, six hundred fifty-seven".