702398609 has 8 divisors (see below), whose sum is σ = 769631328. Its totient is φ = 635728960.

The previous prime is 702398581. The next prime is 702398617. The reversal of 702398609 is 906893207.

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 702398609 - 2²⁰ = 701350033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 702398609.

It is not an unprimeable number, because it can be changed into a prime (702398699) 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, 138152 + ... + 143145.

It is an arithmetic number, because the mean of its divisors is an integer number (96203916).

Almost surely, 2^702398609 is an apocalyptic number.

It is an amenable number.

702398609 is a deficient number, since it is larger than the sum of its proper divisors (67232719).

702398609 is a wasteful number, since it uses less digits than its factorization.

702398609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281535.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 702398609 is about 26502.8037950704. The cubic root of 702398609 is about 888.9170048751.

The spelling of 702398609 in words is "seven hundred two million, three hundred ninety-eight thousand, six hundred nine".