6981057 has 12 divisors (see below), whose sum is σ = 10255440. Its totient is φ = 4574808.

The previous prime is 6981053. The next prime is 6981059. The reversal of 6981057 is 7501896.

It is not a de Polignac number, because 6981057 - 2² = 6981053 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6981053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6043 + ... + 7104.

It is an arithmetic number, because the mean of its divisors is an integer number (854620).

Almost surely, 2^6981057 is an apocalyptic number.

It is an amenable number.

6981057 is a deficient number, since it is larger than the sum of its proper divisors (3274383).

6981057 is a wasteful number, since it uses less digits than its factorization.

6981057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212 (or 13209 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 6981057 is about 2642.1689953521. The cubic root of 6981057 is about 191.1204068876.

The spelling of 6981057 in words is "six million, nine hundred eighty-one thousand, fifty-seven".