16612427 has 4 divisors (see below), whose sum is σ = 17890320. Its totient is φ = 15334536.

The previous prime is 16612423. The next prime is 16612429. The reversal of 16612427 is 72421661.

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 16612427 - 2² = 16612423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16612427.

It is not an unprimeable number, because it can be changed into a prime (16612423) 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, 638927 + ... + 638952.

It is an arithmetic number, because the mean of its divisors is an integer number (4472580).

Almost surely, 2^16612427 is an apocalyptic number.

16612427 is a deficient number, since it is larger than the sum of its proper divisors (1277893).

16612427 is a wasteful number, since it uses less digits than its factorization.

16612427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277892.

The product of its digits is 4032, while the sum is 29.

The square root of 16612427 is about 4075.8345157771. The cubic root of 16612427 is about 255.1590805404.

The spelling of 16612427 in words is "sixteen million, six hundred twelve thousand, four hundred twenty-seven".