6981025 has 12 divisors (see below), whose sum is σ = 8955900. Its totient is φ = 5391680.

The previous prime is 6981011. The next prime is 6981043. The reversal of 6981025 is 5201896.

It can be written as a sum of positive squares in 6 ways, for example, as 309136 + 6671889 = 556^2 + 2583^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6981025 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4090 + ... + 5539.

It is an arithmetic number, because the mean of its divisors is an integer number (746325).

Almost surely, 2^6981025 is an apocalyptic number.

It is an amenable number.

6981025 is a deficient number, since it is larger than the sum of its proper divisors (1974875).

6981025 is a wasteful number, since it uses less digits than its factorization.

6981025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9668 (or 9663 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 6981025 is about 2642.1629397144. The cubic root of 6981025 is about 191.1201148658.

The spelling of 6981025 in words is "six million, nine hundred eighty-one thousand, twenty-five".