709513 has 4 divisors (see below), whose sum is σ = 810880. Its totient is φ = 608148.

The previous prime is 709507. The next prime is 709519. The reversal of 709513 is 315907.

709513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (709507) and next prime (709519).

It is a cyclic number.

It is not a de Polignac number, because 709513 - 2¹⁷ = 578441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (709519) 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, 50673 + ... + 50686.

It is an arithmetic number, because the mean of its divisors is an integer number (202720).

2⁷⁰⁹⁵¹³ is an apocalyptic number.

It is an amenable number.

709513 is a deficient number, since it is larger than the sum of its proper divisors (101367).

709513 is a wasteful number, since it uses less digits than its factorization.

709513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101366.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 709513 is about 842.3259464127. The cubic root of 709513 is about 89.1908122613.

It can be divided in two parts, 7095 and 13, that multiplied together give a triangular number (92235 = T₄₂₉).

The spelling of 709513 in words is "seven hundred nine thousand, five hundred thirteen".