434478923 has 16 divisors (see below), whose sum is σ = 452048256. Its totient is φ = 417318720.

The previous prime is 434478887. The next prime is 434478929. The reversal of 434478923 is 329874434.

It is a cyclic number.

It is not a de Polignac number, because 434478923 - 2¹⁰ = 434477899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434478929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771440 + ... + 772002.

It is an arithmetic number, because the mean of its divisors is an integer number (28253016).

Almost surely, 2^434478923 is an apocalyptic number.

434478923 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

434478923 is a deficient number, since it is larger than the sum of its proper divisors (17569333).

434478923 is a wasteful number, since it uses less digits than its factorization.

434478923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its digits is 580608, while the sum is 44.

The square root of 434478923 is about 20844.1580065015. The cubic root of 434478923 is about 757.3958207943.

The spelling of 434478923 in words is "four hundred thirty-four million, four hundred seventy-eight thousand, nine hundred twenty-three".