16408497 has 8 divisors (see below), whose sum is σ = 25003456. Its totient is φ = 9376272.

The previous prime is 16408493. The next prime is 16408529. The reversal of 16408497 is 79480461.

It is a happy number.

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

It is not a de Polignac number, because 16408497 - 2² = 16408493 is a prime.

It is a super-3 number, since 3×16408497³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16408493) 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, 390658 + ... + 390699.

It is an arithmetic number, because the mean of its divisors is an integer number (3125432).

Almost surely, 2^16408497 is an apocalyptic number.

It is an amenable number.

16408497 is a deficient number, since it is larger than the sum of its proper divisors (8594959).

16408497 is an equidigital number, since it uses as much as digits as its factorization.

16408497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781367.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 16408497 is about 4050.7403027101. The cubic root of 16408497 is about 254.1106891446.

The spelling of 16408497 in words is "sixteen million, four hundred eight thousand, four hundred ninety-seven".