670746528 has 48 divisors (see below), whose sum is σ = 1956346560. Its totient is φ = 223581888.

The previous prime is 670746523. The next prime is 670746529. The reversal of 670746528 is 825647076.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (670746523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387300 + ... + 389027.

It is an arithmetic number, because the mean of its divisors is an integer number (40757220).

Almost surely, 2^670746528 is an apocalyptic number.

It is an amenable number.

670746528 is an abundant number, since it is smaller than the sum of its proper divisors (1285600032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670746528 is a wasteful number, since it uses less digits than its factorization.

670746528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776346 (or 776332 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 670746528 is about 25898.7746428282. The cubic root of 670746528 is about 875.3588853800.

It can be divided in two parts, 6707 and 46528, that added together give a palindrome (53235).

The spelling of 670746528 in words is "six hundred seventy million, seven hundred forty-six thousand, five hundred twenty-eight".