214391923 has 2 divisors, whose sum is σ = 214391924. Its totient is φ = 214391922.

The previous prime is 214391887. The next prime is 214391987. The reversal of 214391923 is 329193412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214391923 is a prime.

It is not a weakly prime, because it can be changed into another prime (214391123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107195961 + 107195962.

It is an arithmetic number, because the mean of its divisors is an integer number (107195962).

Almost surely, 2^214391923 is an apocalyptic number.

214391923 is a deficient number, since it is larger than the sum of its proper divisors (1).

214391923 is an equidigital number, since it uses as much as digits as its factorization.

214391923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 214391923 is about 14642.1283630489. The cubic root of 214391923 is about 598.5073294520.

The spelling of 214391923 in words is "two hundred fourteen million, three hundred ninety-one thousand, nine hundred twenty-three".