416834921 has 2 divisors, whose sum is σ = 416834922. Its totient is φ = 416834920.

The previous prime is 416834867. The next prime is 416834927. The reversal of 416834921 is 129438614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415711321 + 1123600 = 20389^2 + 1060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-416834921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (416834927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208417460 + 208417461.

It is an arithmetic number, because the mean of its divisors is an integer number (208417461).

Almost surely, 2^416834921 is an apocalyptic number.

It is an amenable number.

416834921 is a deficient number, since it is larger than the sum of its proper divisors (1).

416834921 is an equidigital number, since it uses as much as digits as its factorization.

416834921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 416834921 is about 20416.5354798506. The cubic root of 416834921 is about 747.0013129992.

The spelling of 416834921 in words is "four hundred sixteen million, eight hundred thirty-four thousand, nine hundred twenty-one".