6701643 has 32 divisors (see below), whose sum is σ = 10902080. Its totient is φ = 4043520.

The previous prime is 6701641. The next prime is 6701693. The reversal of 6701643 is 3461076.

It is not a de Polignac number, because 6701643 - 2¹ = 6701641 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6701641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21255 + ... + 21567.

It is an arithmetic number, because the mean of its divisors is an integer number (340690).

Almost surely, 2^6701643 is an apocalyptic number.

6701643 is a deficient number, since it is larger than the sum of its proper divisors (4200437).

6701643 is a wasteful number, since it uses less digits than its factorization.

6701643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 6701643 is about 2588.7531747928. The cubic root of 6701643 is about 188.5357717410.

The spelling of 6701643 in words is "six million, seven hundred one thousand, six hundred forty-three".