39047493 has 4 divisors (see below), whose sum is σ = 52063328. Its totient is φ = 26031660.

The previous prime is 39047473. The next prime is 39047531. The reversal of 39047493 is 39474093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39047493 - 2⁶ = 39047429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39047423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6507913 + ... + 6507918.

It is an arithmetic number, because the mean of its divisors is an integer number (13015832).

Almost surely, 2^39047493 is an apocalyptic number.

It is an amenable number.

39047493 is a deficient number, since it is larger than the sum of its proper divisors (13015835).

39047493 is a wasteful number, since it uses less digits than its factorization.

39047493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13015834.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 39047493 is about 6248.7993246703. The cubic root of 39047493 is about 339.2587455593.

The spelling of 39047493 in words is "thirty-nine million, forty-seven thousand, four hundred ninety-three".