39493091 has 8 divisors (see below), whose sum is σ = 45617904. Its totient is φ = 33790720.

The previous prime is 39493079. The next prime is 39493117. The reversal of 39493091 is 19039493.

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 39493091 - 2²² = 35298787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39493021) 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, 105410 + ... + 105783.

It is an arithmetic number, because the mean of its divisors is an integer number (5702238).

Almost surely, 2^39493091 is an apocalyptic number.

39493091 is a deficient number, since it is larger than the sum of its proper divisors (6124813).

39493091 is a wasteful number, since it uses less digits than its factorization.

39493091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211221.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 39493091 is about 6284.3528704235. The cubic root of 39493091 is about 340.5443730387.

The spelling of 39493091 in words is "thirty-nine million, four hundred ninety-three thousand, ninety-one".