2620887 has 8 divisors (see below), whose sum is σ = 3508080. Its totient is φ = 1740480.

The previous prime is 2620883. The next prime is 2620897. The reversal of 2620887 is 7880262.

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

It is not a de Polignac number, because 2620887 - 2² = 2620883 is a prime.

2620887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620883) 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, 712 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (438510).

2^2620887 is an apocalyptic number.

2620887 is a deficient number, since it is larger than the sum of its proper divisors (887193).

2620887 is a wasteful number, since it uses less digits than its factorization.

2620887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 2620887 is about 1618.9153776526. The cubic root of 2620887 is about 137.8741238228.

The spelling of 2620887 in words is "two million, six hundred twenty thousand, eight hundred eighty-seven".