702664 has 8 divisors (see below), whose sum is σ = 1317510. Its totient is φ = 351328.

The previous prime is 702623. The next prime is 702671. The reversal of 702664 is 466207.

It can be written as a sum of positive squares in only one way, i.e., 550564 + 152100 = 742^2 + 390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

702664 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43909 + ... + 43924.

2⁷⁰²⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

702664 is a deficient number, since it is larger than the sum of its proper divisors (614846).

702664 is a wasteful number, since it uses less digits than its factorization.

702664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87839 (or 87835 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 702664 is about 838.2505592005. The cubic root of 702664 is about 88.9028945524.

The spelling of 702664 in words is "seven hundred two thousand, six hundred sixty-four".