667702 has 16 divisors (see below), whose sum is σ = 1176480. Its totient is φ = 278208.

The previous prime is 667699. The next prime is 667727. The reversal of 667702 is 207766.

667702 is nontrivially palindromic in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127 + ... + 1162.

It is an arithmetic number, because the mean of its divisors is an integer number (73530).

2⁶⁶⁷⁷⁰² is an apocalyptic number.

667702 is a deficient number, since it is larger than the sum of its proper divisors (508778).

667702 is a wasteful number, since it uses less digits than its factorization.

667702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 667702 is about 817.1303445595. The cubic root of 667702 is about 87.4032454324.

It can be divided in two parts, 667 and 702, that added together give a square (1369 = 37²).

The spelling of 667702 in words is "six hundred sixty-seven thousand, seven hundred two".