465261997 has 2 divisors, whose sum is σ = 465261998. Its totient is φ = 465261996.

The previous prime is 465261989. The next prime is 465262033. The reversal of 465261997 is 799162564.

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., 461648196 + 3613801 = 21486^2 + 1901^2 .

It is a cyclic number.

It is not a de Polignac number, because 465261997 - 2³ = 465261989 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 465261997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465261947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232630998 + 232630999.

It is an arithmetic number, because the mean of its divisors is an integer number (232630999).

Almost surely, 2^465261997 is an apocalyptic number.

It is an amenable number.

465261997 is a deficient number, since it is larger than the sum of its proper divisors (1).

465261997 is an equidigital number, since it uses as much as digits as its factorization.

465261997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 465261997 is about 21569.9327073591. The cubic root of 465261997 is about 774.8765655653.

The spelling of 465261997 in words is "four hundred sixty-five million, two hundred sixty-one thousand, nine hundred ninety-seven".