409097093 has 2 divisors, whose sum is σ = 409097094. Its totient is φ = 409097092.

The previous prime is 409097081. The next prime is 409097147. The reversal of 409097093 is 390790904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252396769 + 156700324 = 15887^2 + 12518^2 .

It is a cyclic number.

It is not a de Polignac number, because 409097093 - 2¹² = 409092997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409097093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409097053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204548546 + 204548547.

It is an arithmetic number, because the mean of its divisors is an integer number (204548547).

Almost surely, 2^409097093 is an apocalyptic number.

It is an amenable number.

409097093 is a deficient number, since it is larger than the sum of its proper divisors (1).

409097093 is an equidigital number, since it uses as much as digits as its factorization.

409097093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 409097093 is about 20226.1487436437. The cubic root of 409097093 is about 742.3501452122.

The spelling of 409097093 in words is "four hundred nine million, ninety-seven thousand, ninety-three".