434625813 has 12 divisors (see below), whose sum is σ = 649441260. Its totient is φ = 279758976.

The previous prime is 434625809. The next prime is 434625833. The reversal of 434625813 is 318526434.

It can be written as a sum of positive squares in 2 ways, for example, as 279324369 + 155301444 = 16713^2 + 12462^2 .

It is not a de Polignac number, because 434625813 - 2² = 434625809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434625833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832356 + ... + 832877.

It is an arithmetic number, because the mean of its divisors is an integer number (54120105).

Almost surely, 2^434625813 is an apocalyptic number.

It is an amenable number.

434625813 is a deficient number, since it is larger than the sum of its proper divisors (214815447).

434625813 is a wasteful number, since it uses less digits than its factorization.

434625813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665268 (or 1665265 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 434625813 is about 20847.6812379698. The cubic root of 434625813 is about 757.4811654305.

The spelling of 434625813 in words is "four hundred thirty-four million, six hundred twenty-five thousand, eight hundred thirteen".