2621875 has 12 divisors (see below), whose sum is σ = 3281040. Its totient is φ = 2095000.

The previous prime is 2621863. The next prime is 2621881. The reversal of 2621875 is 5781262.

It is not a de Polignac number, because 2621875 - 2¹⁵ = 2589107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2706 + ... + 3544.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

2^2621875 is an apocalyptic number.

2621875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2621875 is a deficient number, since it is larger than the sum of its proper divisors (659165).

2621875 is an frugal number, since it uses more digits than its factorization.

2621875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 844 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 2621875 is about 1619.2204914711. The cubic root of 2621875 is about 137.8914465232.

The spelling of 2621875 in words is "two million, six hundred twenty-one thousand, eight hundred seventy-five".