614427921 has 12 divisors (see below), whose sum is σ = 888750720. Its totient is φ = 409044600.

The previous prime is 614427893. The next prime is 614427941. The reversal of 614427921 is 129724416.

It is a happy number.

614427921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-614427921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (614427941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41005 + ... + 53946.

It is an arithmetic number, because the mean of its divisors is an integer number (74062560).

Almost surely, 2^614427921 is an apocalyptic number.

It is an amenable number.

614427921 is a deficient number, since it is larger than the sum of its proper divisors (274322799).

614427921 is a wasteful number, since it uses less digits than its factorization.

614427921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95676 (or 95673 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 614427921 is about 24787.6566258289. The cubic root of 614427921 is about 850.1397329678.

The spelling of 614427921 in words is "six hundred fourteen million, four hundred twenty-seven thousand, nine hundred twenty-one".