426783403 has 4 divisors (see below), whose sum is σ = 434017080. Its totient is φ = 419549728.

The previous prime is 426783397. The next prime is 426783431. The reversal of 426783403 is 304387624.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426783403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426783463) 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, 3616750 + ... + 3616867.

It is an arithmetic number, because the mean of its divisors is an integer number (108504270).

Almost surely, 2^426783403 is an apocalyptic number.

426783403 is a deficient number, since it is larger than the sum of its proper divisors (7233677).

426783403 is an equidigital number, since it uses as much as digits as its factorization.

426783403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233676.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 426783403 is about 20658.7367232365. The cubic root of 426783403 is about 752.8974750288.

The spelling of 426783403 in words is "four hundred twenty-six million, seven hundred eighty-three thousand, four hundred three".