2620221047 has 8 divisors (see below), whose sum is σ = 2660760576. Its totient is φ = 2579807232.

The previous prime is 2620221031. The next prime is 2620221053. The reversal of 2620221047 is 7401220262.

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

It is a cyclic number.

It is not a de Polignac number, because 2620221047 - 2⁴ = 2620221031 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 (2620221077) 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, 11018 + ... + 73224.

It is an arithmetic number, because the mean of its divisors is an integer number (332595072).

Almost surely, 2^2620221047 is an apocalyptic number.

2620221047 is a deficient number, since it is larger than the sum of its proper divisors (40539529).

2620221047 is an equidigital number, since it uses as much as digits as its factorization.

2620221047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62857.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2620221047 is about 51188.0947779852. The cubic root of 2620221047 is about 1378.6244514754.

The spelling of 2620221047 in words is "two billion, six hundred twenty million, two hundred twenty-one thousand, forty-seven".