2715985 has 16 divisors (see below), whose sum is σ = 3422736. Its totient is φ = 2066688.

The previous prime is 2715983. The next prime is 2715997. The reversal of 2715985 is 5895172.

It can be written as a sum of positive squares in 8 ways, for example, as 23104 + 2692881 = 152^2 + 1641^2 .

It is a cyclic number.

It is not a de Polignac number, because 2715985 - 2¹ = 2715983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2715983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9667 + ... + 9943.

It is an arithmetic number, because the mean of its divisors is an integer number (213921).

2^2715985 is an apocalyptic number.

It is an amenable number.

2715985 is a deficient number, since it is larger than the sum of its proper divisors (706751).

2715985 is a wasteful number, since it uses less digits than its factorization.

2715985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its digits is 25200, while the sum is 37.

The square root of 2715985 is about 1648.0245750595. The cubic root of 2715985 is about 139.5219237306.

The spelling of 2715985 in words is "two million, seven hundred fifteen thousand, nine hundred eighty-five".