214383691 has 2 divisors, whose sum is σ = 214383692. Its totient is φ = 214383690.

The previous prime is 214383683. The next prime is 214383703. The reversal of 214383691 is 196383412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214383691 - 2³ = 214383683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214383691.

It is not a weakly prime, because it can be changed into another prime (214383601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107191845 + 107191846.

It is an arithmetic number, because the mean of its divisors is an integer number (107191846).

Almost surely, 2^214383691 is an apocalyptic number.

214383691 is a deficient number, since it is larger than the sum of its proper divisors (1).

214383691 is an equidigital number, since it uses as much as digits as its factorization.

214383691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 214383691 is about 14641.8472536767. The cubic root of 214383691 is about 598.4996690648.

The spelling of 214383691 in words is "two hundred fourteen million, three hundred eighty-three thousand, six hundred ninety-one".