709897993 has 16 divisors (see below), whose sum is σ = 822743424. Its totient is φ = 599961600.

The previous prime is 709897987. The next prime is 709897997. The reversal of 709897993 is 399798907.

It is not a de Polignac number, because 709897993 - 2²⁹ = 173027081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709897997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179746 + ... + 183652.

It is an arithmetic number, because the mean of its divisors is an integer number (51421464).

Almost surely, 2^709897993 is an apocalyptic number.

It is an amenable number.

709897993 is a deficient number, since it is larger than the sum of its proper divisors (112845431).

709897993 is a wasteful number, since it uses less digits than its factorization.

709897993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272.

The product of its (nonzero) digits is 7715736, while the sum is 61.

The square root of 709897993 is about 26643.9109929455. The cubic root of 709897993 is about 892.0694146045.

The spelling of 709897993 in words is "seven hundred nine million, eight hundred ninety-seven thousand, nine hundred ninety-three".