614421891 has 24 divisors (see below), whose sum is σ = 921682944. Its totient is φ = 393997680.

The previous prime is 614421887. The next prime is 614421893. The reversal of 614421891 is 198124416.

614421891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 614421891 - 2² = 614421887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (614421893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40000 + ... + 53186.

It is an arithmetic number, because the mean of its divisors is an integer number (38403456).

Almost surely, 2^614421891 is an apocalyptic number.

614421891 is a deficient number, since it is larger than the sum of its proper divisors (307261053).

614421891 is a wasteful number, since it uses less digits than its factorization.

614421891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391 (or 13388 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 614421891 is about 24787.5349924110. The cubic root of 614421891 is about 850.1369518663.

The spelling of 614421891 in words is "six hundred fourteen million, four hundred twenty-one thousand, eight hundred ninety-one".