6999970 has 32 divisors (see below), whose sum is σ = 13128192. Its totient is φ = 2685312.

The previous prime is 6999929. The next prime is 6999973. The reversal of 6999970 is 799996.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6999973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31279 + ... + 31501.

It is an arithmetic number, because the mean of its divisors is an integer number (410256).

Almost surely, 2^6999970 is an apocalyptic number.

6999970 is a deficient number, since it is larger than the sum of its proper divisors (6128222).

6999970 is a wasteful number, since it uses less digits than its factorization.

6999970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 275562, while the sum is 49.

The square root of 6999970 is about 2645.7456415914. The cubic root of 6999970 is about 191.2928450010.

The spelling of 6999970 in words is "six million, nine hundred ninety-nine thousand, nine hundred seventy".