2506947 has 8 divisors (see below), whose sum is σ = 3368640. Its totient is φ = 1658280.

The previous prime is 2506927. The next prime is 2506949. The reversal of 2506947 is 7496052.

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

It is not a de Polignac number, because 2506947 - 2⁶ = 2506883 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2506947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2506949) 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, 2797 + ... + 3582.

It is an arithmetic number, because the mean of its divisors is an integer number (421080).

2^2506947 is an apocalyptic number.

2506947 is a deficient number, since it is larger than the sum of its proper divisors (861693).

2506947 is a wasteful number, since it uses less digits than its factorization.

2506947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2506947 is about 1583.3341403507. The cubic root of 2506947 is about 135.8464782926.

The spelling of 2506947 in words is "two million, five hundred six thousand, nine hundred forty-seven".