2984605 has 32 divisors (see below), whose sum is σ = 4251744. Its totient is φ = 1990656.

The previous prime is 2984603. The next prime is 2984609. The reversal of 2984605 is 5064892.

It is a happy number.

2984605 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 16 ways, for example, as 182329 + 2802276 = 427^2 + 1674^2 .

It is a 7-Lehmer number, since φ(2984605) divides (2984605-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 2984605 - 2¹ = 2984603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2984603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40849 + ... + 40921.

It is an arithmetic number, because the mean of its divisors is an integer number (132867).

2^2984605 is an apocalyptic number.

It is an amenable number.

2984605 is a deficient number, since it is larger than the sum of its proper divisors (1267139).

2984605 is a wasteful number, since it uses less digits than its factorization.

2984605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2984605 is about 1727.6009377168. The cubic root of 2984605 is about 143.9778290197.

The spelling of 2984605 in words is "two million, nine hundred eighty-four thousand, six hundred five".