16497407 has 4 divisors (see below), whose sum is σ = 16657680. Its totient is φ = 16337136.

The previous prime is 16497401. The next prime is 16497409. The reversal of 16497407 is 70479461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16497407 - 2⁴ = 16497391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16497401) 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, 79982 + ... + 80187.

It is an arithmetic number, because the mean of its divisors is an integer number (4164420).

Almost surely, 2^16497407 is an apocalyptic number.

16497407 is a deficient number, since it is larger than the sum of its proper divisors (160273).

16497407 is a wasteful number, since it uses less digits than its factorization.

16497407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160272.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 16497407 is about 4061.7000135411. The cubic root of 16497407 is about 254.5688317932.

The spelling of 16497407 in words is "sixteen million, four hundred ninety-seven thousand, four hundred seven".