214291977 has 4 divisors (see below), whose sum is σ = 285722640. Its totient is φ = 142861316.

The previous prime is 214291939. The next prime is 214291999. The reversal of 214291977 is 779192412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214291977 - 2⁷ = 214291849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214291577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35715327 + ... + 35715332.

It is an arithmetic number, because the mean of its divisors is an integer number (71430660).

Almost surely, 2^214291977 is an apocalyptic number.

It is an amenable number.

214291977 is a deficient number, since it is larger than the sum of its proper divisors (71430663).

214291977 is an equidigital number, since it uses as much as digits as its factorization.

214291977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71430662.

The product of its digits is 63504, while the sum is 42.

The square root of 214291977 is about 14638.7150050816. The cubic root of 214291977 is about 598.4143102272.

The spelling of 214291977 in words is "two hundred fourteen million, two hundred ninety-one thousand, nine hundred seventy-seven".