2497866 has 16 divisors (see below), whose sum is σ = 5709504. Its totient is φ = 713664.

The previous prime is 2497849. The next prime is 2497867. The reversal of 2497866 is 6687942.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 59473 = 2497866 / (2 + 4 + 9 + 7 + 8 + 6 + 6).

It is not an unprimeable number, because it can be changed into a prime (2497867) 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, 29695 + ... + 29778.

It is an arithmetic number, because the mean of its divisors is an integer number (356844).

2^2497866 is an apocalyptic number.

2497866 is an abundant number, since it is smaller than the sum of its proper divisors (3211638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2497866 is a wasteful number, since it uses less digits than its factorization.

2497866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59485.

The product of its digits is 145152, while the sum is 42.

The square root of 2497866 is about 1580.4638559613. The cubic root of 2497866 is about 135.6822527220.

The spelling of 2497866 in words is "two million, four hundred ninety-seven thousand, eight hundred sixty-six".