16410991 has 2 divisors, whose sum is σ = 16410992. Its totient is φ = 16410990.

The previous prime is 16410959. The next prime is 16411007. The reversal of 16410991 is 19901461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16410991 - 2⁵ = 16410959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16450991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8205495 + 8205496.

It is an arithmetic number, because the mean of its divisors is an integer number (8205496).

Almost surely, 2^16410991 is an apocalyptic number.

16410991 is a deficient number, since it is larger than the sum of its proper divisors (1).

16410991 is an equidigital number, since it uses as much as digits as its factorization.

16410991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 16410991 is about 4051.0481359767. The cubic root of 16410991 is about 254.1235629614.

The spelling of 16410991 in words is "sixteen million, four hundred ten thousand, nine hundred ninety-one".