2701981 has 4 divisors (see below), whose sum is σ = 2714112. Its totient is φ = 2689852.

The previous prime is 2701969. The next prime is 2701987. The reversal of 2701981 is 1891072.

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 2701981 - 2²¹ = 604829 is a prime.

It is a super-2 number, since 2×2701981² = 14601402648722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2701987) 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, 5725 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (678528).

2^2701981 is an apocalyptic number.

It is an amenable number.

2701981 is a deficient number, since it is larger than the sum of its proper divisors (12131).

2701981 is a wasteful number, since it uses less digits than its factorization.

2701981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2701981 is about 1643.7703610906. The cubic root of 2701981 is about 139.2817121921.

The spelling of 2701981 in words is "two million, seven hundred one thousand, nine hundred eighty-one".