16939395 has 96 divisors (see below), whose sum is σ = 35622720. Its totient is φ = 7603200.

The previous prime is 16939367. The next prime is 16939399. The reversal of 16939395 is 59393961.

It is not a de Polignac number, because 16939395 - 2¹² = 16935299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16939395.

It is not an unprimeable number, because it can be changed into a prime (16939399) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 277665 + ... + 277725.

It is an arithmetic number, because the mean of its divisors is an integer number (371070).

Almost surely, 2^16939395 is an apocalyptic number.

16939395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16939395 is an abundant number, since it is smaller than the sum of its proper divisors (18683325).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16939395 is a wasteful number, since it uses less digits than its factorization.

16939395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 97 counting only the distinct ones).

The product of its digits is 196830, while the sum is 45.

The square root of 16939395 is about 4115.7496279536. The cubic root of 16939395 is about 256.8222412827.

It can be divided in two parts, 1 and 6939395, that added together give a palindrome (6939396).

The spelling of 16939395 in words is "sixteen million, nine hundred thirty-nine thousand, three hundred ninety-five".