214179869 has 2 divisors, whose sum is σ = 214179870. Its totient is φ = 214179868.

The previous prime is 214179829. The next prime is 214179929. The reversal of 214179869 is 968971412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144240100 + 69939769 = 12010^2 + 8363^2 .

It is a cyclic number.

It is not a de Polignac number, because 214179869 - 2¹⁶ = 214114333 is a prime.

It is a super-2 number, since 2×214179869² = 91746032569714322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214179809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107089934 + 107089935.

It is an arithmetic number, because the mean of its divisors is an integer number (107089935).

Almost surely, 2^214179869 is an apocalyptic number.

It is an amenable number.

214179869 is a deficient number, since it is larger than the sum of its proper divisors (1).

214179869 is an equidigital number, since it uses as much as digits as its factorization.

214179869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 214179869 is about 14634.8853429058. The cubic root of 214179869 is about 598.3099374694.

The spelling of 214179869 in words is "two hundred fourteen million, one hundred seventy-nine thousand, eight hundred sixty-nine".