426064187 has 2 divisors, whose sum is σ = 426064188. Its totient is φ = 426064186.

The previous prime is 426064129. The next prime is 426064229. The reversal of 426064187 is 781460624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426064187 - 2¹² = 426060091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426064187.

It is not a weakly prime, because it can be changed into another prime (426064487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213032093 + 213032094.

It is an arithmetic number, because the mean of its divisors is an integer number (213032094).

Almost surely, 2^426064187 is an apocalyptic number.

426064187 is a deficient number, since it is larger than the sum of its proper divisors (1).

426064187 is an equidigital number, since it uses as much as digits as its factorization.

426064187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 426064187 is about 20641.3223171385. The cubic root of 426064187 is about 752.4743092667.

The spelling of 426064187 in words is "four hundred twenty-six million, sixty-four thousand, one hundred eighty-seven".