2913849 has 9 divisors (see below), whose sum is σ = 4216303. Its totient is φ = 1939152.

The previous prime is 2913811. The next prime is 2913863. The reversal of 2913849 is 9483192.

The square root of 2913849 is 1707.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 480249 + 2433600 = 693^2 + 1560^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is a de Polignac number, because none of the positive numbers 2^k-2913849 is a prime.

It is a Duffinian number.

2913849 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2912849) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4837 + ... + 5405.

2^2913849 is an apocalyptic number.

2913849 is the 1707-th square number.

2913849 is the 854-th centered octagonal number.

It is an amenable number.

2913849 is a deficient number, since it is larger than the sum of its proper divisors (1302454).

2913849 is an frugal number, since it uses more digits than its factorization.

2913849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 572 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The cubic root of 2913849 is about 142.8309574387.

Multiplying 2913849 by its sum of digits (36), we get a square (104898564 = 10242²).

The spelling of 2913849 in words is "two million, nine hundred thirteen thousand, eight hundred forty-nine".