6664707 has 32 divisors (see below), whose sum is σ = 11404800. Its totient is φ = 3767904.

The previous prime is 6664667. The next prime is 6664711. The reversal of 6664707 is 7074666.

It is not a de Polignac number, because 6664707 - 2⁶ = 6664643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6664717) 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, 33733 + ... + 33929.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

Almost surely, 2^6664707 is an apocalyptic number.

6664707 is a deficient number, since it is larger than the sum of its proper divisors (4740093).

6664707 is a wasteful number, since it uses less digits than its factorization.

6664707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 6664707 is about 2581.6093817617. The cubic root of 6664707 is about 188.1887627996.

The spelling of 6664707 in words is "six million, six hundred sixty-four thousand, seven hundred seven".