16667996 has 6 divisors (see below), whose sum is σ = 29169000. Its totient is φ = 8333996.

The previous prime is 16667983. The next prime is 16667999. The reversal of 16667996 is 69976661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16667999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2083496 + ... + 2083503.

It is an arithmetic number, because the mean of its divisors is an integer number (4861500).

Almost surely, 2^16667996 is an apocalyptic number.

It is an amenable number.

16667996 is a deficient number, since it is larger than the sum of its proper divisors (12501004).

16667996 is a wasteful number, since it uses less digits than its factorization.

16667996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167003 (or 4167001 counting only the distinct ones).

The product of its digits is 734832, while the sum is 50.

The square root of 16667996 is about 4082.6457108106. The cubic root of 16667996 is about 255.4432684885.

The spelling of 16667996 in words is "sixteen million, six hundred sixty-seven thousand, nine hundred ninety-six".