426783629 has 4 divisors (see below), whose sum is σ = 426825600. Its totient is φ = 426741660.

The previous prime is 426783611. The next prime is 426783631. The reversal of 426783629 is 926387624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 426783629 - 2²⁴ = 410006413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426783649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4964 + ... + 29634.

It is an arithmetic number, because the mean of its divisors is an integer number (106706400).

Almost surely, 2^426783629 is an apocalyptic number.

It is an amenable number.

426783629 is a deficient number, since it is larger than the sum of its proper divisors (41971).

426783629 is a wasteful number, since it uses less digits than its factorization.

426783629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41970.

The product of its digits is 870912, while the sum is 47.

The square root of 426783629 is about 20658.7421930765. The cubic root of 426783629 is about 752.8976079259.

The spelling of 426783629 in words is "four hundred twenty-six million, seven hundred eighty-three thousand, six hundred twenty-nine".