39398423 has 4 divisors (see below), whose sum is σ = 39438480. Its totient is φ = 39358368.

The previous prime is 39398399. The next prime is 39398453. The reversal of 39398423 is 32489393.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39398423 - 2¹⁴ = 39382039 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 (39398453) 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, 18515 + ... + 20532.

It is an arithmetic number, because the mean of its divisors is an integer number (9859620).

Almost surely, 2^39398423 is an apocalyptic number.

39398423 is a deficient number, since it is larger than the sum of its proper divisors (40057).

39398423 is a wasteful number, since it uses less digits than its factorization.

39398423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40056.

The product of its digits is 139968, while the sum is 41.

The square root of 39398423 is about 6276.8163108378. The cubic root of 39398423 is about 340.2720515789.

The spelling of 39398423 in words is "thirty-nine million, three hundred ninety-eight thousand, four hundred twenty-three".