39699423 has 16 divisors (see below), whose sum is σ = 58912000. Its totient is φ = 26422200.

The previous prime is 39699421. The next prime is 39699427. The reversal of 39699423 is 32499693.

It is not a de Polignac number, because 39699423 - 2¹ = 39699421 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 (39699421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27678 + ... + 29076.

It is an arithmetic number, because the mean of its divisors is an integer number (3682000).

Almost surely, 2^39699423 is an apocalyptic number.

39699423 is a deficient number, since it is larger than the sum of its proper divisors (19212577).

39699423 is a wasteful number, since it uses less digits than its factorization.

39699423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459 (or 2453 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 39699423 is about 6300.7478127600. The cubic root of 39699423 is about 341.1364022324.

The spelling of 39699423 in words is "thirty-nine million, six hundred ninety-nine thousand, four hundred twenty-three".