709746066 has 12 divisors (see below), whose sum is σ = 1537783182. Its totient is φ = 236582016.

The previous prime is 709746049. The next prime is 709746067. The reversal of 709746066 is 660647907.

It can be written as a sum of positive squares in only one way, i.e., 690165441 + 19580625 = 26271^2 + 4425^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (709746067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19715151 + ... + 19715186.

Almost surely, 2^709746066 is an apocalyptic number.

709746066 is an abundant number, since it is smaller than the sum of its proper divisors (828037116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

709746066 is a wasteful number, since it uses less digits than its factorization.

709746066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39430345 (or 39430342 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 709746066 is about 26641.0597762176. The cubic root of 709746066 is about 892.0057720809.

The spelling of 709746066 in words is "seven hundred nine million, seven hundred forty-six thousand, sixty-six".