214987967 has 8 divisors (see below), whose sum is σ = 228427200. Its totient is φ = 202336992.

The previous prime is 214987963. The next prime is 214987979. The reversal of 214987967 is 769789412.

It is not a de Polignac number, because 214987967 - 2² = 214987963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214987963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16967 + ... + 26792.

It is an arithmetic number, because the mean of its divisors is an integer number (28553400).

Almost surely, 2^214987967 is an apocalyptic number.

214987967 is a deficient number, since it is larger than the sum of its proper divisors (13439233).

214987967 is an frugal number, since it uses more digits than its factorization.

214987967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43810 (or 43776 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 214987967 is about 14662.4679709795. The cubic root of 214987967 is about 599.0614650933.

The spelling of 214987967 in words is "two hundred fourteen million, nine hundred eighty-seven thousand, nine hundred sixty-seven".