214897390 has 8 divisors (see below), whose sum is σ = 386815320. Its totient is φ = 85958952.

The previous prime is 214897387. The next prime is 214897399. The reversal of 214897390 is 93798412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214897399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10744860 + ... + 10744879.

It is an arithmetic number, because the mean of its divisors is an integer number (48351915).

Almost surely, 2^214897390 is an apocalyptic number.

214897390 is a deficient number, since it is larger than the sum of its proper divisors (171917930).

214897390 is a wasteful number, since it uses less digits than its factorization.

214897390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21489746.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 214897390 is about 14659.3789090807. The cubic root of 214897390 is about 598.9773226904.

The spelling of 214897390 in words is "two hundred fourteen million, eight hundred ninety-seven thousand, three hundred ninety".