2489705 has 8 divisors (see below), whose sum is σ = 2997000. Its totient is φ = 1985536.

The previous prime is 2489687. The next prime is 2489713. The reversal of 2489705 is 5079842.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5929 + 2483776 = 77^2 + 1576^2 .

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 2489705 - 2¹⁴ = 2473321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691 + ... + 2799.

It is an arithmetic number, because the mean of its divisors is an integer number (374625).

2^2489705 is an apocalyptic number.

It is an amenable number.

2489705 is a deficient number, since it is larger than the sum of its proper divisors (507295).

2489705 is a wasteful number, since it uses less digits than its factorization.

2489705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2489705 is about 1577.8799067103. The cubic root of 2489705 is about 135.5343249868.

The spelling of 2489705 in words is "two million, four hundred eighty-nine thousand, seven hundred five".