709491 has 8 divisors (see below), whose sum is σ = 961744. Its totient is φ = 465120.

The previous prime is 709469. The next prime is 709507. The reversal of 709491 is 194907.

709491 = T₁₂₁ + T₁₂₂ + ... + T₁₈₁.

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

It is not a de Polignac number, because 709491 - 2⁹ = 708979 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (709421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (120218).

2⁷⁰⁹⁴⁹¹ is an apocalyptic number.

709491 is a deficient number, since it is larger than the sum of its proper divisors (252253).

709491 is a wasteful number, since it uses less digits than its factorization.

709491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 709491 is about 842.3128872337. The cubic root of 709491 is about 89.1898903998.

The spelling of 709491 in words is "seven hundred nine thousand, four hundred ninety-one".