426743497 has 4 divisors (see below), whose sum is σ = 441458820. Its totient is φ = 412028176.

The previous prime is 426743479. The next prime is 426743507. The reversal of 426743497 is 794347624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 81378441 + 345365056 = 9021^2 + 18584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426743497 is a prime.

It is a super-2 number, since 2×426743497² = 364220024463578018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426743417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7357618 + ... + 7357675.

It is an arithmetic number, because the mean of its divisors is an integer number (110364705).

Almost surely, 2^426743497 is an apocalyptic number.

It is an amenable number.

426743497 is a deficient number, since it is larger than the sum of its proper divisors (14715323).

426743497 is a wasteful number, since it uses less digits than its factorization.

426743497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14715322.

The product of its digits is 1016064, while the sum is 46.

The square root of 426743497 is about 20657.7708623172. The cubic root of 426743497 is about 752.8740079626.

The spelling of 426743497 in words is "four hundred twenty-six million, seven hundred forty-three thousand, four hundred ninety-seven".