214856739 has 32 divisors (see below), whose sum is σ = 327683840. Its totient is φ = 139081536.

The previous prime is 214856729. The next prime is 214856771. The reversal of 214856739 is 937658412.

214856739 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 214856739 - 2⁷ = 214856611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214856694 and 214856703.

It is not an unprimeable number, because it can be changed into a prime (214856729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131244 + ... + 132870.

It is an arithmetic number, because the mean of its divisors is an integer number (10240120).

Almost surely, 2^214856739 is an apocalyptic number.

214856739 is a deficient number, since it is larger than the sum of its proper divisors (112827101).

214856739 is a wasteful number, since it uses less digits than its factorization.

214856739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1770 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 214856739 is about 14657.9923250082. The cubic root of 214856739 is about 598.9395518537.

It can be divided in two parts, 21485 and 6739, that added together give a square (28224 = 168²).

The spelling of 214856739 in words is "two hundred fourteen million, eight hundred fifty-six thousand, seven hundred thirty-nine".