16043397 has 8 divisors (see below), whose sum is σ = 22321344. Its totient is φ = 10230528.

The previous prime is 16043389. The next prime is 16043431. The reversal of 16043397 is 79334061.

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

It is not a de Polignac number, because 16043397 - 2³ = 16043389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16043327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116188 + ... + 116325.

It is an arithmetic number, because the mean of its divisors is an integer number (2790168).

Almost surely, 2^16043397 is an apocalyptic number.

It is an amenable number.

16043397 is a deficient number, since it is larger than the sum of its proper divisors (6277947).

16043397 is a wasteful number, since it uses less digits than its factorization.

16043397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232539.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 16043397 is about 4005.4209516604. The cubic root of 16043397 is about 252.2118242900.

The spelling of 16043397 in words is "sixteen million, forty-three thousand, three hundred ninety-seven".