434861879 has 2 divisors, whose sum is σ = 434861880. Its totient is φ = 434861878.

The previous prime is 434861839. The next prime is 434861923. The reversal of 434861879 is 978168434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434861879 - 2¹² = 434857783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434861839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217430939 + 217430940.

It is an arithmetic number, because the mean of its divisors is an integer number (217430940).

Almost surely, 2^434861879 is an apocalyptic number.

434861879 is a deficient number, since it is larger than the sum of its proper divisors (1).

434861879 is an equidigital number, since it uses as much as digits as its factorization.

434861879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The square root of 434861879 is about 20853.3421541968. The cubic root of 434861879 is about 757.6182819867.

The spelling of 434861879 in words is "four hundred thirty-four million, eight hundred sixty-one thousand, eight hundred seventy-nine".