2490647 has 4 divisors (see below), whose sum is σ = 2598960. Its totient is φ = 2382336.

The previous prime is 2490637. The next prime is 2490659. The reversal of 2490647 is 7460942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7460942 = 2 ⋅3730471.

It is a cyclic number.

It is not a de Polignac number, because 2490647 - 2⁶ = 2490583 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 (2490617) 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, 54122 + ... + 54167.

It is an arithmetic number, because the mean of its divisors is an integer number (649740).

2^2490647 is an apocalyptic number.

2490647 is a deficient number, since it is larger than the sum of its proper divisors (108313).

2490647 is a wasteful number, since it uses less digits than its factorization.

2490647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108312.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2490647 is about 1578.1783802853. The cubic root of 2490647 is about 135.5514163337.

The spelling of 2490647 in words is "two million, four hundred ninety thousand, six hundred forty-seven".