2861634 has 16 divisors (see below), whose sum is σ = 5749920. Its totient is φ = 949440.

The previous prime is 2861623. The next prime is 2861657. The reversal of 2861634 is 4361682.

It is a d-powerful number, because it can be written as 2¹⁹ + 8⁷ + 6 + 1 + 6⁶ + 3¹¹ + 4⁷ .

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, 457 + ... + 2435.

It is an arithmetic number, because the mean of its divisors is an integer number (359370).

2^2861634 is an apocalyptic number.

2861634 is an abundant number, since it is smaller than the sum of its proper divisors (2888286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2861634 is a wasteful number, since it uses less digits than its factorization.

2861634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225.

The product of its digits is 6912, while the sum is 30.

The square root of 2861634 is about 1691.6364857735. The cubic root of 2861634 is about 141.9726522749.

The spelling of 2861634 in words is "two million, eight hundred sixty-one thousand, six hundred thirty-four".