670679328 has 96 divisors (see below), whose sum is σ = 2021725440. Its totient is φ = 192533760.

The previous prime is 670679297. The next prime is 670679369. The reversal of 670679328 is 823976076.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×670679328² = 899621522013063168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3351 + ... + 36777.

It is an arithmetic number, because the mean of its divisors is an integer number (21059640).

Almost surely, 2^670679328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670679328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010862720).

670679328 is an abundant number, since it is smaller than the sum of its proper divisors (1351046112).

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

670679328 is a wasteful number, since it uses less digits than its factorization.

670679328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33470 (or 33462 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 670679328 is about 25897.4772516552. The cubic root of 670679328 is about 875.3296512460.

The spelling of 670679328 in words is "six hundred seventy million, six hundred seventy-nine thousand, three hundred twenty-eight".