6930981 has 16 divisors (see below), whose sum is σ = 10715520. Its totient is φ = 4419360.

The previous prime is 6930977. The next prime is 6931007. The reversal of 6930981 is 1890396.

It is not a de Polignac number, because 6930981 - 2² = 6930977 is a prime.

It is a super-2 number, since 2×6930981² = 96076995244722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6930961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4960 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (669720).

Almost surely, 2^6930981 is an apocalyptic number.

It is an amenable number.

6930981 is a deficient number, since it is larger than the sum of its proper divisors (3784539).

6930981 is a wasteful number, since it uses less digits than its factorization.

6930981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11193 (or 11187 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 6930981 is about 2632.6756351666. The cubic root of 6930981 is about 190.6623329550.

The spelling of 6930981 in words is "six million, nine hundred thirty thousand, nine hundred eighty-one".