709229645 has 8 divisors (see below), whose sum is σ = 855486456. Its totient is φ = 564443136.

The previous prime is 709229629. The next prime is 709229657. The reversal of 709229645 is 546922907.

It can be written as a sum of positive squares in 4 ways, for example, as 45549001 + 663680644 = 6749^2 + 25762^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 709229645 - 2⁴ = 709229629 is a prime.

It is a super-3 number, since 3×709229645³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 709229596 and 709229605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366512 + ... + 368441.

It is an arithmetic number, because the mean of its divisors is an integer number (106935807).

Almost surely, 2^709229645 is an apocalyptic number.

It is an amenable number.

709229645 is a deficient number, since it is larger than the sum of its proper divisors (146256811).

709229645 is a wasteful number, since it uses less digits than its factorization.

709229645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735151.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 709229645 is about 26631.3658117641. The cubic root of 709229645 is about 891.7893743647.

The spelling of 709229645 in words is "seven hundred nine million, two hundred twenty-nine thousand, six hundred forty-five".