2621047 has 8 divisors (see below), whose sum is σ = 3079440. Its totient is φ = 2199360.

The previous prime is 2621033. The next prime is 2621053. The reversal of 2621047 is 7401262.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2621047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9022 + ... + 9307.

It is an arithmetic number, because the mean of its divisors is an integer number (384930).

2^2621047 is an apocalyptic number.

2621047 is a deficient number, since it is larger than the sum of its proper divisors (458393).

2621047 is a wasteful number, since it uses less digits than its factorization.

2621047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18353.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2621047 is about 1618.9647926993. The cubic root of 2621047 is about 137.8769294138.

The spelling of 2621047 in words is "two million, six hundred twenty-one thousand, forty-seven".