16897407 has 8 divisors (see below), whose sum is σ = 22955184. Its totient is φ = 11052288.

The previous prime is 16897399. The next prime is 16897411. The reversal of 16897407 is 70479861.

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

It is not a de Polignac number, because 16897407 - 2³ = 16897399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16897417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52978 + ... + 53295.

It is an arithmetic number, because the mean of its divisors is an integer number (2869398).

Almost surely, 2^16897407 is an apocalyptic number.

16897407 is a deficient number, since it is larger than the sum of its proper divisors (6057777).

16897407 is a wasteful number, since it uses less digits than its factorization.

16897407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106329.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 16897407 is about 4110.6455697372. The cubic root of 16897407 is about 256.6098689936.

The spelling of 16897407 in words is "sixteen million, eight hundred ninety-seven thousand, four hundred seven".