3079981 has 4 divisors (see below), whose sum is σ = 3098592. Its totient is φ = 3061372.

The previous prime is 3079939. The next prime is 3079987. The reversal of 3079981 is 1899703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3079981 - 2¹⁷ = 2948909 is a prime.

It is a super-2 number, since 2×3079981² = 18972565920722, which contains 22 as substring.

It is a Duffinian number.

3079981 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3079981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3079987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9055 + ... + 9388.

It is an arithmetic number, because the mean of its divisors is an integer number (774648).

Almost surely, 2^3079981 is an apocalyptic number.

It is an amenable number.

3079981 is a deficient number, since it is larger than the sum of its proper divisors (18611).

3079981 is a wasteful number, since it uses less digits than its factorization.

3079981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18610.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 3079981 is about 1754.9874643427. The cubic root of 3079981 is about 145.4954277957.

The spelling of 3079981 in words is "three million, seventy-nine thousand, nine hundred eighty-one".