2491953 has 8 divisors (see below), whose sum is σ = 3345216. Its totient is φ = 1650000.

The previous prime is 2491949. The next prime is 2491961. The reversal of 2491953 is 3591942.

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

It is not a de Polignac number, because 2491953 - 2² = 2491949 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 4³ + 9³ + 1 + 9⁴ + 5⁹ + 3¹² .

It is not an unprimeable number, because it can be changed into a prime (2491903) 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, 2298 + ... + 3203.

It is an arithmetic number, because the mean of its divisors is an integer number (418152).

2^2491953 is an apocalyptic number.

It is an amenable number.

2491953 is a deficient number, since it is larger than the sum of its proper divisors (853263).

2491953 is a wasteful number, since it uses less digits than its factorization.

2491953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655.

The product of its digits is 9720, while the sum is 33.

The square root of 2491953 is about 1578.5920942409. The cubic root of 2491953 is about 135.5751048527.

The spelling of 2491953 in words is "two million, four hundred ninety-one thousand, nine hundred fifty-three".