214689897 has 6 divisors (see below), whose sum is σ = 310107642. Its totient is φ = 143126592.

The previous prime is 214689887. The next prime is 214689907. The reversal of 214689897 is 798986412.

214689897 is a `hidden beast` number, since 2 + 1 + 468 + 98 + 97 = 666.

It is an interprime number because it is at equal distance from previous prime (214689887) and next prime (214689907).

It can be written as a sum of positive squares in only one way, i.e., 195188841 + 19501056 = 13971^2 + 4416^2 .

It is not a de Polignac number, because 214689897 - 2¹⁵ = 214657129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214689857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11927208 + ... + 11927225.

It is an arithmetic number, because the mean of its divisors is an integer number (51684607).

Almost surely, 2^214689897 is an apocalyptic number.

It is an amenable number.

214689897 is a deficient number, since it is larger than the sum of its proper divisors (95417745).

214689897 is a wasteful number, since it uses less digits than its factorization.

214689897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23854439 (or 23854436 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 214689897 is about 14652.3000583526. The cubic root of 214689897 is about 598.7844808515.

The spelling of 214689897 in words is "two hundred fourteen million, six hundred eighty-nine thousand, eight hundred ninety-seven".