39398493 has 4 divisors (see below), whose sum is σ = 52531328. Its totient is φ = 26265660.

The previous prime is 39398483. The next prime is 39398507. The reversal of 39398493 is 39489393.

39398493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39489393 = 3 ⋅13163131.

It is not a de Polignac number, because 39398493 - 2⁴ = 39398477 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 (39398453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6566413 + ... + 6566418.

It is an arithmetic number, because the mean of its divisors is an integer number (13132832).

Almost surely, 2^39398493 is an apocalyptic number.

It is an amenable number.

39398493 is a deficient number, since it is larger than the sum of its proper divisors (13132835).

39398493 is a wasteful number, since it uses less digits than its factorization.

39398493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132834.

The product of its digits is 629856, while the sum is 48.

The square root of 39398493 is about 6276.8218869106. The cubic root of 39398493 is about 340.2722531016.

The spelling of 39398493 in words is "thirty-nine million, three hundred ninety-eight thousand, four hundred ninety-three".