465209397 has 6 divisors (see below), whose sum is σ = 671969142. Its totient is φ = 310139592.

The previous prime is 465209383. The next prime is 465209447. The reversal of 465209397 is 793902564.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 272943441 + 192265956 = 16521^2 + 13866^2 .

It is not a de Polignac number, because 465209397 - 2¹¹ = 465207349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465209317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25844958 + ... + 25844975.

It is an arithmetic number, because the mean of its divisors is an integer number (111994857).

Almost surely, 2^465209397 is an apocalyptic number.

It is an amenable number.

465209397 is a deficient number, since it is larger than the sum of its proper divisors (206759745).

465209397 is a wasteful number, since it uses less digits than its factorization.

465209397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51689939 (or 51689936 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 465209397 is about 21568.7133830463. The cubic root of 465209397 is about 774.8473633497.

The spelling of 465209397 in words is "four hundred sixty-five million, two hundred nine thousand, three hundred ninety-seven".