2366981 has 4 divisors (see below), whose sum is σ = 2374464. Its totient is φ = 2359500.

The previous prime is 2366957. The next prime is 2366989. The reversal of 2366981 is 1896632.

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 a de Polignac number, because none of the positive numbers 2^k-2366981 is a prime.

It is a super-2 number, since 2×2366981² = 11205198108722, 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 (2366989) 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, 3245 + ... + 3906.

It is an arithmetic number, because the mean of its divisors is an integer number (593616).

2^2366981 is an apocalyptic number.

It is an amenable number.

2366981 is a deficient number, since it is larger than the sum of its proper divisors (7483).

2366981 is an equidigital number, since it uses as much as digits as its factorization.

2366981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7482.

The product of its digits is 15552, while the sum is 35.

The square root of 2366981 is about 1538.4995937601. The cubic root of 2366981 is about 133.2697523246.

The spelling of 2366981 in words is "two million, three hundred sixty-six thousand, nine hundred eighty-one".