16409461 has 2 divisors, whose sum is σ = 16409462. Its totient is φ = 16409460.

The previous prime is 16409431. The next prime is 16409473. The reversal of 16409461 is 16490461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9492561 + 6916900 = 3081^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 16409461 - 2⁵ = 16409429 is a prime.

It is a super-3 number, since 3×16409461³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16409411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8204730 + 8204731.

It is an arithmetic number, because the mean of its divisors is an integer number (8204731).

Almost surely, 2^16409461 is an apocalyptic number.

It is an amenable number.

16409461 is a deficient number, since it is larger than the sum of its proper divisors (1).

16409461 is an equidigital number, since it uses as much as digits as its factorization.

16409461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 16409461 is about 4050.8592915578. The cubic root of 16409461 is about 254.1156653856.

The spelling of 16409461 in words is "sixteen million, four hundred nine thousand, four hundred sixty-one".