2634981 has 8 divisors (see below), whose sum is σ = 3525984. Its totient is φ = 1750320.

The previous prime is 2634967. The next prime is 2634991. The reversal of 2634981 is 1894362.

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

It is not a de Polignac number, because 2634981 - 2¹⁷ = 2503909 is a prime.

It is a super-2 number, since 2×2634981² = 13886249740722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 6³ + 3³ + 4⁶ + 9⁶ + 8⁷ + 1 .

2634981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634941) 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, 510 + ... + 2351.

It is an arithmetic number, because the mean of its divisors is an integer number (440748).

2^2634981 is an apocalyptic number.

It is an amenable number.

2634981 is a deficient number, since it is larger than the sum of its proper divisors (891003).

2634981 is a wasteful number, since it uses less digits than its factorization.

2634981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171.

The product of its digits is 10368, while the sum is 33.

The square root of 2634981 is about 1623.2624556738. The cubic root of 2634981 is about 138.1208246590.

The spelling of 2634981 in words is "two million, six hundred thirty-four thousand, nine hundred eighty-one".