426993577 has 2 divisors, whose sum is σ = 426993578. Its totient is φ = 426993576.

The previous prime is 426993509. The next prime is 426993587. The reversal of 426993577 is 775399624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367718976 + 59274601 = 19176^2 + 7699^2 .

It is a cyclic number.

It is not a de Polignac number, because 426993577 - 2¹¹ = 426991529 is a prime.

It is not a weakly prime, because it can be changed into another prime (426993587) 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 as a sum of consecutive naturals, namely, 213496788 + 213496789.

It is an arithmetic number, because the mean of its divisors is an integer number (213496789).

Almost surely, 2^426993577 is an apocalyptic number.

It is an amenable number.

426993577 is a deficient number, since it is larger than the sum of its proper divisors (1).

426993577 is an equidigital number, since it uses as much as digits as its factorization.

426993577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 52.

The square root of 426993577 is about 20663.8229038094. The cubic root of 426993577 is about 753.0210455210.

The spelling of 426993577 in words is "four hundred twenty-six million, nine hundred ninety-three thousand, five hundred seventy-seven".