6981477 has 8 divisors (see below), whose sum is σ = 9323616. Its totient is φ = 4646832.

The previous prime is 6981463. The next prime is 6981497. The reversal of 6981477 is 7741896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6981477 - 2⁷ = 6981349 is a prime.

It is a super-3 number, since 3×6981477³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883 + ... + 3839.

It is an arithmetic number, because the mean of its divisors is an integer number (1165452).

Almost surely, 2^6981477 is an apocalyptic number.

It is an amenable number.

6981477 is a deficient number, since it is larger than the sum of its proper divisors (2342139).

6981477 is a wasteful number, since it uses less digits than its factorization.

6981477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747.

The product of its digits is 84672, while the sum is 42.

The square root of 6981477 is about 2642.2484743112. The cubic root of 6981477 is about 191.1242395910.

The spelling of 6981477 in words is "six million, nine hundred eighty-one thousand, four hundred seventy-seven".