423969793 has 6 divisors (see below), whose sum is σ = 459091734. Its totient is φ = 391356576.

The previous prime is 423969773. The next prime is 423969823. The reversal of 423969793 is 397969324.

It can be written as a sum of positive squares in 3 ways, for example, as 46949904 + 377019889 = 6852^2 + 19417^2 .

It is a de Polignac number, because none of the positive numbers 2^k-423969793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423969793.

It is not an unprimeable number, because it can be changed into a prime (423969713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1254180 + ... + 1254517.

It is an arithmetic number, because the mean of its divisors is an integer number (76515289).

Almost surely, 2^423969793 is an apocalyptic number.

It is an amenable number.

423969793 is a deficient number, since it is larger than the sum of its proper divisors (35121941).

423969793 is a wasteful number, since it uses less digits than its factorization.

423969793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508723 (or 2508710 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 52.

The square root of 423969793 is about 20590.5267781084. The cubic root of 423969793 is about 751.2393098350.

The spelling of 423969793 in words is "four hundred twenty-three million, nine hundred sixty-nine thousand, seven hundred ninety-three".