426793919 has 4 divisors (see below), whose sum is σ = 427983120. Its totient is φ = 425604720.

The previous prime is 426793909. The next prime is 426793921. The reversal of 426793919 is 919397624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426793919 - 2¹² = 426789823 is a prime.

It is a super-2 number, since 2×426793919² = 364306098590757122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426793909) 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, 594062 + ... + 594779.

It is an arithmetic number, because the mean of its divisors is an integer number (106995780).

Almost surely, 2^426793919 is an apocalyptic number.

426793919 is a deficient number, since it is larger than the sum of its proper divisors (1189201).

426793919 is a wasteful number, since it uses less digits than its factorization.

426793919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189200.

The product of its digits is 734832, while the sum is 50.

The square root of 426793919 is about 20658.9912386835. The cubic root of 426793919 is about 752.9036588095.

The spelling of 426793919 in words is "four hundred twenty-six million, seven hundred ninety-three thousand, nine hundred nineteen".