214765893 has 6 divisors (see below), whose sum is σ = 310217414. Its totient is φ = 143177256.

The previous prime is 214765883. The next prime is 214765897. The reversal of 214765893 is 398567412.

214765893 is a `hidden beast` number, since 21 + 47 + 6 + 589 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131262849 + 83503044 = 11457^2 + 9138^2 .

It is not a de Polignac number, because 214765893 - 2⁸ = 214765637 is a prime.

It is a super-2 number, since 2×214765893² = 92248777592174898, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214765897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11931430 + ... + 11931447.

Almost surely, 2^214765893 is an apocalyptic number.

It is an amenable number.

214765893 is a deficient number, since it is larger than the sum of its proper divisors (95451521).

214765893 is a wasteful number, since it uses less digits than its factorization.

214765893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23862883 (or 23862880 counting only the distinct ones).

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

The square root of 214765893 is about 14654.8931418827. The cubic root of 214765893 is about 598.8551251588.

The spelling of 214765893 in words is "two hundred fourteen million, seven hundred sixty-five thousand, eight hundred ninety-three".