214763021 has 6 divisors (see below), whose sum is σ = 236061966. Its totient is φ = 195239000.

The previous prime is 214762997. The next prime is 214763041. The reversal of 214763021 is 120367412.

It can be written as a sum of positive squares in only one way, i.e., 171348100 + 43414921 = 13090^2 + 6589^2 .

It is not a de Polignac number, because 214763021 - 2⁶ = 214762957 is a prime.

It is a super-2 number, since 2×214763021² = 92246310378092882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214763041) 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, 887330 + ... + 887571.

It is an arithmetic number, because the mean of its divisors is an integer number (39343661).

Almost surely, 2^214763021 is an apocalyptic number.

It is an amenable number.

214763021 is a deficient number, since it is larger than the sum of its proper divisors (21298945).

214763021 is a wasteful number, since it uses less digits than its factorization.

214763021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774923 (or 1774912 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 214763021 is about 14654.7951538055. The cubic root of 214763021 is about 598.8524557101.

The spelling of 214763021 in words is "two hundred fourteen million, seven hundred sixty-three thousand, twenty-one".