670260393 has 64 divisors (see below), whose sum is σ = 1144872960. Its totient is φ = 383745600.

The previous prime is 670260337. The next prime is 670260413. The reversal of 670260393 is 393062076.

670260393 is a `hidden beast` number, since 6 + 7 + 0 + 260 + 393 = 666.

It is not a de Polignac number, because 670260393 - 2⁹ = 670259881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (670260193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 395055 + ... + 396747.

It is an arithmetic number, because the mean of its divisors is an integer number (17888640).

Almost surely, 2^670260393 is an apocalyptic number.

It is an amenable number.

670260393 is a deficient number, since it is larger than the sum of its proper divisors (474612567).

670260393 is a wasteful number, since it uses less digits than its factorization.

670260393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787 (or 1781 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 670260393 is about 25889.3876520863. The cubic root of 670260393 is about 875.1473571688.

The spelling of 670260393 in words is "six hundred seventy million, two hundred sixty thousand, three hundred ninety-three".