670659284 has 6 divisors (see below), whose sum is σ = 1173653754. Its totient is φ = 335329640.

The previous prime is 670659271. The next prime is 670659287. The reversal of 670659284 is 482956076.

It can be written as a sum of positive squares in only one way, i.e., 375506884 + 295152400 = 19378^2 + 17180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670659287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83832407 + ... + 83832414.

It is an arithmetic number, because the mean of its divisors is an integer number (195608959).

Almost surely, 2^670659284 is an apocalyptic number.

It is an amenable number.

670659284 is a deficient number, since it is larger than the sum of its proper divisors (502994470).

670659284 is a wasteful number, since it uses less digits than its factorization.

670659284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167664825 (or 167664823 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 670659284 is about 25897.0902612629. The cubic root of 670659284 is about 875.3209310913.

The spelling of 670659284 in words is "six hundred seventy million, six hundred fifty-nine thousand, two hundred eighty-four".