16097639 has 4 divisors (see below), whose sum is σ = 16652760. Its totient is φ = 15542520.

The previous prime is 16097633. The next prime is 16097651. The reversal of 16097639 is 93679061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16097639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16097596 and 16097605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16097633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277517 + ... + 277574.

It is an arithmetic number, because the mean of its divisors is an integer number (4163190).

Almost surely, 2^16097639 is an apocalyptic number.

16097639 is a deficient number, since it is larger than the sum of its proper divisors (555121).

16097639 is an equidigital number, since it uses as much as digits as its factorization.

16097639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555120.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 16097639 is about 4012.1863117258. The cubic root of 16097639 is about 252.4957434828.

The spelling of 16097639 in words is "sixteen million, ninety-seven thousand, six hundred thirty-nine".