434874397 has 2 divisors, whose sum is σ = 434874398. Its totient is φ = 434874396.

The previous prime is 434874389. The next prime is 434874439. The reversal of 434874397 is 793478434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351225081 + 83649316 = 18741^2 + 9146^2 .

It is a cyclic number.

It is not a de Polignac number, because 434874397 - 2³ = 434874389 is a prime.

It is a super-2 number, since 2×434874397² = 378231482332227218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 434874397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434874347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217437198 + 217437199.

It is an arithmetic number, because the mean of its divisors is an integer number (217437199).

Almost surely, 2^434874397 is an apocalyptic number.

It is an amenable number.

434874397 is a deficient number, since it is larger than the sum of its proper divisors (1).

434874397 is an equidigital number, since it uses as much as digits as its factorization.

434874397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 49.

The square root of 434874397 is about 20853.6422957717. The cubic root of 434874397 is about 757.6255515552.

The spelling of 434874397 in words is "four hundred thirty-four million, eight hundred seventy-four thousand, three hundred ninety-seven".