16670497 has 4 divisors (see below), whose sum is σ = 16705216. Its totient is φ = 16635780.

The previous prime is 16670483. The next prime is 16670503. The reversal of 16670497 is 79407661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16670497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16670597) 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, 16629 + ... + 17602.

It is an arithmetic number, because the mean of its divisors is an integer number (4176304).

Almost surely, 2^16670497 is an apocalyptic number.

It is an amenable number.

16670497 is a deficient number, since it is larger than the sum of its proper divisors (34719).

16670497 is an equidigital number, since it uses as much as digits as its factorization.

16670497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34718.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 16670497 is about 4082.9519957991. The cubic root of 16670497 is about 255.4560441027.

The spelling of 16670497 in words is "sixteen million, six hundred seventy thousand, four hundred ninety-seven".