214981967 has 2 divisors, whose sum is σ = 214981968. Its totient is φ = 214981966.

The previous prime is 214981961. The next prime is 214981981. The reversal of 214981967 is 769189412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214981967 is a prime.

It is a super-2 number, since 2×214981967² = 92434492270378178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214981961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107490983 + 107490984.

It is an arithmetic number, because the mean of its divisors is an integer number (107490984).

Almost surely, 2^214981967 is an apocalyptic number.

214981967 is a deficient number, since it is larger than the sum of its proper divisors (1).

214981967 is an equidigital number, since it uses as much as digits as its factorization.

214981967 is an odious number, because the sum of its binary digits is odd.

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

The square root of 214981967 is about 14662.2633655244. The cubic root of 214981967 is about 599.0558920647.

The spelling of 214981967 in words is "two hundred fourteen million, nine hundred eighty-one thousand, nine hundred sixty-seven".