426504997 has 4 divisors (see below), whose sum is σ = 427630720. Its totient is φ = 425379276.

The previous prime is 426504977. The next prime is 426505007. The reversal of 426504997 is 799405624.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426504997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426504907) 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, 562293 + ... + 563050.

It is an arithmetic number, because the mean of its divisors is an integer number (106907680).

Almost surely, 2^426504997 is an apocalyptic number.

It is an amenable number.

426504997 is a deficient number, since it is larger than the sum of its proper divisors (1125723).

426504997 is a wasteful number, since it uses less digits than its factorization.

426504997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125722.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 426504997 is about 20651.9974094517. The cubic root of 426504997 is about 752.7337254794.

The spelling of 426504997 in words is "four hundred twenty-six million, five hundred four thousand, nine hundred ninety-seven".