469390729 has 4 divisors (see below), whose sum is σ = 469565460. Its totient is φ = 469216000.

The previous prime is 469390697. The next prime is 469390751. The reversal of 469390729 is 927093964.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 348830329 + 120560400 = 18677^2 + 10980^2 .

It is a cyclic number.

It is not a de Polignac number, because 469390729 - 2⁵ = 469390697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (469394729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83272 + ... + 88729.

It is an arithmetic number, because the mean of its divisors is an integer number (117391365).

Almost surely, 2^469390729 is an apocalyptic number.

It is an amenable number.

469390729 is a deficient number, since it is larger than the sum of its proper divisors (174731).

469390729 is a wasteful number, since it uses less digits than its factorization.

469390729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174730.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 469390729 is about 21665.4270440257. The cubic root of 469390729 is about 777.1619020537.

The spelling of 469390729 in words is "four hundred sixty-nine million, three hundred ninety thousand, seven hundred twenty-nine".