426722537 has 2 divisors, whose sum is σ = 426722538. Its totient is φ = 426722536.

The previous prime is 426722521. The next prime is 426722551. The reversal of 426722537 is 735227624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413552896 + 13169641 = 20336^2 + 3629^2 .

It is a cyclic number.

It is not a de Polignac number, because 426722537 - 2⁴ = 426722521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426722537.

It is not a weakly prime, because it can be changed into another prime (426722507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213361268 + 213361269.

It is an arithmetic number, because the mean of its divisors is an integer number (213361269).

Almost surely, 2^426722537 is an apocalyptic number.

It is an amenable number.

426722537 is a deficient number, since it is larger than the sum of its proper divisors (1).

426722537 is an equidigital number, since it uses as much as digits as its factorization.

426722537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 38.

The square root of 426722537 is about 20657.2635409437. The cubic root of 426722537 is about 752.8616816685.

The spelling of 426722537 in words is "four hundred twenty-six million, seven hundred twenty-two thousand, five hundred thirty-seven".