214850921 has 2 divisors, whose sum is σ = 214850922. Its totient is φ = 214850920.

The previous prime is 214850903. The next prime is 214850927. The reversal of 214850921 is 129058412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130210921 + 84640000 = 11411^2 + 9200^2 .

It is a cyclic number.

It is not a de Polignac number, because 214850921 - 2¹⁴ = 214834537 is a prime.

It is a super-3 number, since 3×214850921³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (214850927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107425460 + 107425461.

It is an arithmetic number, because the mean of its divisors is an integer number (107425461).

Almost surely, 2^214850921 is an apocalyptic number.

It is an amenable number.

214850921 is a deficient number, since it is larger than the sum of its proper divisors (1).

214850921 is an equidigital number, since it uses as much as digits as its factorization.

214850921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 214850921 is about 14657.7938653810. The cubic root of 214850921 is about 598.9341456751.

The spelling of 214850921 in words is "two hundred fourteen million, eight hundred fifty thousand, nine hundred twenty-one".