1066064347 has 4 divisors (see below), whose sum is σ = 1066342360. Its totient is φ = 1065786336.

The previous prime is 1066064327. The next prime is 1066064357. The reversal of 1066064347 is 7434606601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1066064347 - 2²³ = 1057675739 is a prime.

It is a super-2 number, since 2×1066064347² = 2272986383889072818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066064327) 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, 133173 + ... + 140950.

It is an arithmetic number, because the mean of its divisors is an integer number (266585590).

Almost surely, 2^1066064347 is an apocalyptic number.

1066064347 is a deficient number, since it is larger than the sum of its proper divisors (278013).

1066064347 is an equidigital number, since it uses as much as digits as its factorization.

1066064347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278012.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 1066064347 is about 32650.6408359775. The cubic root of 1066064347 is about 1021.5535556302.

The spelling of 1066064347 in words is "one billion, sixty-six million, sixty-four thousand, three hundred forty-seven".