404542097 has 2 divisors, whose sum is σ = 404542098. Its totient is φ = 404542096.

The previous prime is 404542063. The next prime is 404542109. The reversal of 404542097 is 790245404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289816576 + 114725521 = 17024^2 + 10711^2 .

It is a cyclic number.

It is not a de Polignac number, because 404542097 - 2¹⁰ = 404541073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404542597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202271048 + 202271049.

It is an arithmetic number, because the mean of its divisors is an integer number (202271049).

Almost surely, 2^404542097 is an apocalyptic number.

It is an amenable number.

404542097 is a deficient number, since it is larger than the sum of its proper divisors (1).

404542097 is an equidigital number, since it uses as much as digits as its factorization.

404542097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 404542097 is about 20113.2318884857. The cubic root of 404542097 is about 739.5846811202.

The spelling of 404542097 in words is "four hundred four million, five hundred forty-two thousand, ninety-seven".