709769513 has 4 divisors (see below), whose sum is σ = 724871040. Its totient is φ = 694667988.

The previous prime is 709769509. The next prime is 709769531. The reversal of 709769513 is 315967907.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 709769513 - 2² = 709769509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 15101479 = 709769513 / (7 + 0 + 9 + 7 + 6 + 9 + 5 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709762513) 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, 7550693 + ... + 7550786.

It is an arithmetic number, because the mean of its divisors is an integer number (181217760).

Almost surely, 2^709769513 is an apocalyptic number.

It is an amenable number.

709769513 is a deficient number, since it is larger than the sum of its proper divisors (15101527).

709769513 is a wasteful number, since it uses less digits than its factorization.

709769513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15101526.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 709769513 is about 26641.4998263987. The cubic root of 709769513 is about 892.0155946686.

The spelling of 709769513 in words is "seven hundred nine million, seven hundred sixty-nine thousand, five hundred thirteen".