2870981 has 8 divisors (see below), whose sum is σ = 2962080. Its totient is φ = 2781072.

The previous prime is 2870969. The next prime is 2870983. The reversal of 2870981 is 1890782.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2870981 is a prime.

It is a super-2 number, since 2×2870981² = 16485063804722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2870983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7511 + ... + 7883.

It is an arithmetic number, because the mean of its divisors is an integer number (370260).

2^2870981 is an apocalyptic number.

It is an amenable number.

2870981 is a deficient number, since it is larger than the sum of its proper divisors (91099).

2870981 is a wasteful number, since it uses less digits than its factorization.

2870981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 2870981 is about 1694.3969428679. The cubic root of 2870981 is about 142.1270601152.

The spelling of 2870981 in words is "two million, eight hundred seventy thousand, nine hundred eighty-one".