39375493 has 4 divisors (see below), whose sum is σ = 39399948. Its totient is φ = 39351040.

The previous prime is 39375473. The next prime is 39375509. The reversal of 39375493 is 39457393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39457393 = 47 ⋅839519.

It can be written as a sum of positive squares in 2 ways, for example, as 16507969 + 22867524 = 4063^2 + 4782^2 .

It is a cyclic number.

It is not a de Polignac number, because 39375493 - 2¹³ = 39367301 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 (39375433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9628 + ... + 13093.

It is an arithmetic number, because the mean of its divisors is an integer number (9849987).

Almost surely, 2^39375493 is an apocalyptic number.

It is an amenable number.

39375493 is a deficient number, since it is larger than the sum of its proper divisors (24455).

39375493 is a wasteful number, since it uses less digits than its factorization.

39375493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24454.

The product of its digits is 306180, while the sum is 43.

The square root of 39375493 is about 6274.9894820629. The cubic root of 39375493 is about 340.2060256510.

The spelling of 39375493 in words is "thirty-nine million, three hundred seventy-five thousand, four hundred ninety-three".