504091397 has 2 divisors, whose sum is σ = 504091398. Its totient is φ = 504091396.

The previous prime is 504091349. The next prime is 504091459. The reversal of 504091397 is 793190405.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494350756 + 9740641 = 22234^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 504091397 - 2⁶ = 504091333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 504091397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504091097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252045698 + 252045699.

It is an arithmetic number, because the mean of its divisors is an integer number (252045699).

Almost surely, 2^504091397 is an apocalyptic number.

It is an amenable number.

504091397 is a deficient number, since it is larger than the sum of its proper divisors (1).

504091397 is an equidigital number, since it uses as much as digits as its factorization.

504091397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 504091397 is about 22451.9798013449. The cubic root of 504091397 is about 795.8595436839.

The spelling of 504091397 in words is "five hundred four million, ninety-one thousand, three hundred ninety-seven".