6930956021 has 16 divisors (see below), whose sum is σ = 8011737600. Its totient is φ = 5929686000.

The previous prime is 6930956017. The next prime is 6930956023. The reversal of 6930956021 is 1206590396.

It is a cyclic number.

It is not a de Polignac number, because 6930956021 - 2² = 6930956017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6930956021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6930956023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78251 + ... + 141368.

It is an arithmetic number, because the mean of its divisors is an integer number (500733600).

Almost surely, 2^6930956021 is an apocalyptic number.

It is an amenable number.

6930956021 is a deficient number, since it is larger than the sum of its proper divisors (1080781579).

6930956021 is a wasteful number, since it uses less digits than its factorization.

6930956021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219800.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 6930956021 is about 83252.3634559404. The cubic root of 6930956021 is about 1906.6210390805.

The spelling of 6930956021 in words is "six billion, nine hundred thirty million, nine hundred fifty-six thousand, twenty-one".