2620875 has 32 divisors (see below), whose sum is σ = 4530240. Its totient is φ = 1344000.

The previous prime is 2620847. The next prime is 2620883. The reversal of 2620875 is 5780262.

It is not a de Polignac number, because 2620875 - 2⁶ = 2620811 is a prime.

2620875 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10755 + ... + 10995.

It is an arithmetic number, because the mean of its divisors is an integer number (141570).

2^2620875 is an apocalyptic number.

2620875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2620875 is a deficient number, since it is larger than the sum of its proper divisors (1909365).

2620875 is a wasteful number, since it uses less digits than its factorization.

2620875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2620875 is about 1618.9116714633. The cubic root of 2620875 is about 137.8739133988.

Adding to 2620875 its sum of digits (30), we get a triangular number (2620905 = T₂₂₈₉).

The spelling of 2620875 in words is "two million, six hundred twenty thousand, eight hundred seventy-five".