426720713 has 4 divisors (see below), whose sum is σ = 429078468. Its totient is φ = 424362960.

The previous prime is 426720631. The next prime is 426720719. The reversal of 426720713 is 317027624.

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 142730809 + 283989904 = 11947^2 + 16852^2 .

It is a cyclic number.

It is not a de Polignac number, because 426720713 - 2⁸ = 426720457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426720713.

It is not an unprimeable number, because it can be changed into a prime (426720719) 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, 1178606 + ... + 1178967.

It is an arithmetic number, because the mean of its divisors is an integer number (107269617).

Almost surely, 2^426720713 is an apocalyptic number.

It is an amenable number.

426720713 is a deficient number, since it is larger than the sum of its proper divisors (2357755).

426720713 is a wasteful number, since it uses less digits than its factorization.

426720713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357754.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 426720713 is about 20657.2193917768. The cubic root of 426720713 is about 752.8606089796.

The spelling of 426720713 in words is "four hundred twenty-six million, seven hundred twenty thousand, seven hundred thirteen".