214493729 has 4 divisors (see below), whose sum is σ = 216182784. Its totient is φ = 212804676.

The previous prime is 214493723. The next prime is 214493737. The reversal of 214493729 is 927394412.

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.

It is a cyclic number.

It is not a de Polignac number, because 214493729 - 2⁸ = 214493473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214493723) 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, 844337 + ... + 844590.

It is an arithmetic number, because the mean of its divisors is an integer number (54045696).

Almost surely, 2^214493729 is an apocalyptic number.

It is an amenable number.

214493729 is a deficient number, since it is larger than the sum of its proper divisors (1689055).

214493729 is a wasteful number, since it uses less digits than its factorization.

214493729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689054.

The product of its digits is 108864, while the sum is 41.

The square root of 214493729 is about 14645.6044259020. The cubic root of 214493729 is about 598.6020500525.

The spelling of 214493729 in words is "two hundred fourteen million, four hundred ninety-three thousand, seven hundred twenty-nine".