39118493 has 4 divisors (see below), whose sum is σ = 39200640. Its totient is φ = 39036348.

The previous prime is 39118483. The next prime is 39118501. The reversal of 39118493 is 39481193.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 39118493 - 2¹⁰ = 39117469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39118403) 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, 40355 + ... + 41312.

It is an arithmetic number, because the mean of its divisors is an integer number (9800160).

Almost surely, 2^39118493 is an apocalyptic number.

It is an amenable number.

39118493 is a deficient number, since it is larger than the sum of its proper divisors (82147).

39118493 is an equidigital number, since it uses as much as digits as its factorization.

39118493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82146.

The product of its digits is 23328, while the sum is 38.

The square root of 39118493 is about 6254.4778359188. The cubic root of 39118493 is about 339.4642456181.

The spelling of 39118493 in words is "thirty-nine million, one hundred eighteen thousand, four hundred ninety-three".