670211128 has 32 divisors (see below), whose sum is σ = 1332311760. Its totient is φ = 314979840.

The previous prime is 670211123. The next prime is 670211137. The reversal of 670211128 is 821112076.

It is a junction number, because it is equal to n+sod(n) for n = 670211096 and 670211105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670211123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117298 + ... + 122878.

Almost surely, 2^670211128 is an apocalyptic number.

670211128 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

670211128 is a deficient number, since it is larger than the sum of its proper divisors (662100632).

670211128 is a wasteful number, since it uses less digits than its factorization.

670211128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487 (or 6483 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 670211128 is about 25888.4361829756. The cubic root of 670211128 is about 875.1259151585.

The spelling of 670211128 in words is "six hundred seventy million, two hundred eleven thousand, one hundred twenty-eight".