469648849 has 4 divisors (see below), whose sum is σ = 469747620. Its totient is φ = 469550080.

The previous prime is 469648843. The next prime is 469648913. The reversal of 469648849 is 948846964.

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 114062400 + 355586449 = 10680^2 + 18857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-469648849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 469648793 and 469648802.

It is not an unprimeable number, because it can be changed into a prime (469648843) 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, 41872 + ... + 51889.

It is an arithmetic number, because the mean of its divisors is an integer number (117436905).

Almost surely, 2^469648849 is an apocalyptic number.

It is an amenable number.

469648849 is a deficient number, since it is larger than the sum of its proper divisors (98771).

469648849 is an equidigital number, since it uses as much as digits as its factorization.

469648849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98770.

The product of its digits is 11943936, while the sum is 58.

The square root of 469648849 is about 21671.3831815138. The cubic root of 469648849 is about 777.3043308510.

The spelling of 469648849 in words is "four hundred sixty-nine million, six hundred forty-eight thousand, eight hundred forty-nine".