6981535 has 16 divisors (see below), whose sum is σ = 9538560. Its totient is φ = 4855840.

The previous prime is 6981503. The next prime is 6981539. The reversal of 6981535 is 5351896.

It is not a de Polignac number, because 6981535 - 2⁵ = 6981503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6981494 and 6981503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981539) 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, 1495 + ... + 4024.

It is an arithmetic number, because the mean of its divisors is an integer number (596160).

Almost surely, 2^6981535 is an apocalyptic number.

6981535 is a deficient number, since it is larger than the sum of its proper divisors (2557025).

6981535 is a wasteful number, since it uses less digits than its factorization.

6981535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5558.

The product of its digits is 32400, while the sum is 37.

The square root of 6981535 is about 2642.2594497891. The cubic root of 6981535 is about 191.1247688570.

The spelling of 6981535 in words is "six million, nine hundred eighty-one thousand, five hundred thirty-five".