15671996 has 12 divisors (see below), whose sum is σ = 27453720. Its totient is φ = 7828080.

The previous prime is 15671951. The next prime is 15672023. The reversal of 15671996 is 69917651.

It is a happy number.

It is a super-2 number, since 2×15671996² = 491222917248032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6710 + ... + 8738.

It is an arithmetic number, because the mean of its divisors is an integer number (2287810).

Almost surely, 2^15671996 is an apocalyptic number.

It is an amenable number.

15671996 is a deficient number, since it is larger than the sum of its proper divisors (11781724).

15671996 is a wasteful number, since it uses less digits than its factorization.

15671996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964 (or 3962 counting only the distinct ones).

The product of its digits is 102060, while the sum is 44.

The square root of 15671996 is about 3958.7871880160. The cubic root of 15671996 is about 250.2503944601.

The spelling of 15671996 in words is "fifteen million, six hundred seventy-one thousand, nine hundred ninety-six".