469912909 has 4 divisors (see below), whose sum is σ = 479911104. Its totient is φ = 459914716.

The previous prime is 469912867. The next prime is 469912939. The reversal of 469912909 is 909219964.

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 469912909 - 2²¹ = 467815757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469912939) 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, 4999027 + ... + 4999120.

It is an arithmetic number, because the mean of its divisors is an integer number (119977776).

Almost surely, 2^469912909 is an apocalyptic number.

It is an amenable number.

469912909 is a deficient number, since it is larger than the sum of its proper divisors (9998195).

469912909 is an equidigital number, since it uses as much as digits as its factorization.

469912909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9998194.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 469912909 is about 21677.4746914856. The cubic root of 469912909 is about 777.4499833073.

The spelling of 469912909 in words is "four hundred sixty-nine million, nine hundred twelve thousand, nine hundred nine".