465639769 has 4 divisors (see below), whose sum is σ = 532159744. Its totient is φ = 399119796.

The previous prime is 465639743. The next prime is 465639781. The reversal of 465639769 is 967936564.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 465639769 - 2⁹ = 465639257 is a prime.

It is a super-2 number, since 2×465639769² = 433640788948746722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (465639719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33259977 + ... + 33259990.

It is an arithmetic number, because the mean of its divisors is an integer number (133039936).

Almost surely, 2^465639769 is an apocalyptic number.

It is an amenable number.

465639769 is a deficient number, since it is larger than the sum of its proper divisors (66519975).

465639769 is an equidigital number, since it uses as much as digits as its factorization.

465639769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66519974.

The product of its digits is 7348320, while the sum is 55.

The square root of 465639769 is about 21578.6878424060. The cubic root of 465639769 is about 775.0862305717.

The spelling of 465639769 in words is "four hundred sixty-five million, six hundred thirty-nine thousand, seven hundred sixty-nine".