414406621 has 2 divisors, whose sum is σ = 414406622. Its totient is φ = 414406620.

The previous prime is 414406583. The next prime is 414406649. The reversal of 414406621 is 126604414.

It is an a-pointer prime, because the next prime (414406649) can be obtained adding 414406621 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284765625 + 129640996 = 16875^2 + 11386^2 .

It is a cyclic number.

It is not a de Polignac number, because 414406621 - 2¹⁵ = 414373853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 414406621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (414406691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207203310 + 207203311.

It is an arithmetic number, because the mean of its divisors is an integer number (207203311).

Almost surely, 2^414406621 is an apocalyptic number.

It is an amenable number.

414406621 is a deficient number, since it is larger than the sum of its proper divisors (1).

414406621 is an equidigital number, since it uses as much as digits as its factorization.

414406621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 414406621 is about 20356.9796630050. The cubic root of 414406621 is about 745.5479181757.

The spelling of 414406621 in words is "four hundred fourteen million, four hundred six thousand, six hundred twenty-one".