16039397 has 12 divisors (see below), whose sum is σ = 17887968. Its totient is φ = 14368200.

The previous prime is 16039393. The next prime is 16039399. The reversal of 16039397 is 79393061.

It is not a de Polignac number, because 16039397 - 2² = 16039393 is a prime.

It is a super-2 number, since 2×16039397² = 514524512247218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16039397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16039393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7658 + ... + 9524.

It is an arithmetic number, because the mean of its divisors is an integer number (1490664).

Almost surely, 2^16039397 is an apocalyptic number.

It is an amenable number.

16039397 is a deficient number, since it is larger than the sum of its proper divisors (1848571).

16039397 is a wasteful number, since it uses less digits than its factorization.

16039397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1949 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 16039397 is about 4004.9215972351. The cubic root of 16039397 is about 252.1908617479.

The spelling of 16039397 in words is "sixteen million, thirty-nine thousand, three hundred ninety-seven".