6657470 has 8 divisors (see below), whose sum is σ = 11983464. Its totient is φ = 2662984.

The previous prime is 6657461. The next prime is 6657473. The reversal of 6657470 is 747566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6657470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6657473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332864 + ... + 332883.

It is an arithmetic number, because the mean of its divisors is an integer number (1497933).

Almost surely, 2^6657470 is an apocalyptic number.

6657470 is a deficient number, since it is larger than the sum of its proper divisors (5325994).

6657470 is a wasteful number, since it uses less digits than its factorization.

6657470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665754.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 6657470 is about 2580.2073560084. The cubic root of 6657470 is about 188.1206220031.

The spelling of 6657470 in words is "six million, six hundred fifty-seven thousand, four hundred seventy".