16407953 has 4 divisors (see below), whose sum is σ = 16416768. Its totient is φ = 16399140.

The previous prime is 16407943. The next prime is 16407961. The reversal of 16407953 is 35970461.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35970461 = 5557 ⋅6473.

It is a cyclic number.

It is not a de Polignac number, because 16407953 - 2¹⁴ = 16391569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16407943) 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, 401 + ... + 5742.

It is an arithmetic number, because the mean of its divisors is an integer number (4104192).

Almost surely, 2^16407953 is an apocalyptic number.

It is an amenable number.

16407953 is a deficient number, since it is larger than the sum of its proper divisors (8815).

16407953 is an equidigital number, since it uses as much as digits as its factorization.

16407953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 16407953 is about 4050.6731539338. The cubic root of 16407953 is about 254.1078808893.

The spelling of 16407953 in words is "sixteen million, four hundred seven thousand, nine hundred fifty-three".