2481997 has 12 divisors (see below), whose sum is σ = 2967420. Its totient is φ = 2069928.

The previous prime is 2481979. The next prime is 2482009. The reversal of 2481997 is 7991842.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1920996 + 561001 = 1386^2 + 749^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2481997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2481977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67063 + ... + 67099.

It is an arithmetic number, because the mean of its divisors is an integer number (247285).

2^2481997 is an apocalyptic number.

It is an amenable number.

2481997 is a deficient number, since it is larger than the sum of its proper divisors (485423).

2481997 is an frugal number, since it uses more digits than its factorization.

2481997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 44 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 2481997 is about 1575.4354953472. The cubic root of 2481997 is about 135.3943112708.

The spelling of 2481997 in words is "two million, four hundred eighty-one thousand, nine hundred ninety-seven".