416671261 has 2 divisors, whose sum is σ = 416671262. Its totient is φ = 416671260.

The previous prime is 416671259. The next prime is 416671301. The reversal of 416671261 is 162176614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351562500 + 65108761 = 18750^2 + 8069^2 .

It is a cyclic number.

It is not a de Polignac number, because 416671261 - 2¹ = 416671259 is a prime.

It is a super-2 number, since 2×416671261² = 347229879486660242, which contains 22 as substring.

Together with 416671259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416671361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208335630 + 208335631.

It is an arithmetic number, because the mean of its divisors is an integer number (208335631).

Almost surely, 2^416671261 is an apocalyptic number.

It is an amenable number.

416671261 is a deficient number, since it is larger than the sum of its proper divisors (1).

416671261 is an equidigital number, since it uses as much as digits as its factorization.

416671261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 416671261 is about 20412.5270606067. The cubic root of 416671261 is about 746.9035362917.

The spelling of 416671261 in words is "four hundred sixteen million, six hundred seventy-one thousand, two hundred sixty-one".