39399389 has 8 divisors (see below), whose sum is σ = 39761280. Its totient is φ = 39039616.

The previous prime is 39399377. The next prime is 39399427. The reversal of 39399389 is 98399393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39399389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39399389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39399329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84134 + ... + 84600.

It is an arithmetic number, because the mean of its divisors is an integer number (4970160).

Almost surely, 2^39399389 is an apocalyptic number.

It is an amenable number.

39399389 is a deficient number, since it is larger than the sum of its proper divisors (361891).

39399389 is a wasteful number, since it uses less digits than its factorization.

39399389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059.

The product of its digits is 1417176, while the sum is 53.

The square root of 39399389 is about 6276.8932602044. The cubic root of 39399389 is about 340.2748325710.

The spelling of 39399389 in words is "thirty-nine million, three hundred ninety-nine thousand, three hundred eighty-nine".