416211997 has 2 divisors, whose sum is σ = 416211998. Its totient is φ = 416211996.

The previous prime is 416211989. The next prime is 416212039. The reversal of 416211997 is 799112614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229643716 + 186568281 = 15154^2 + 13659^2 .

It is a cyclic number.

It is not a de Polignac number, because 416211997 - 2³ = 416211989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416211977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208105998 + 208105999.

It is an arithmetic number, because the mean of its divisors is an integer number (208105999).

Almost surely, 2^416211997 is an apocalyptic number.

It is an amenable number.

416211997 is a deficient number, since it is larger than the sum of its proper divisors (1).

416211997 is an equidigital number, since it uses as much as digits as its factorization.

416211997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 40.

The square root of 416211997 is about 20401.2743964685. The cubic root of 416211997 is about 746.6290177082.

The spelling of 416211997 in words is "four hundred sixteen million, two hundred eleven thousand, nine hundred ninety-seven".