2864670 has 64 divisors (see below), whose sum is σ = 7511616. Its totient is φ = 696320.

The previous prime is 2864657. The next prime is 2864671. The reversal of 2864670 is 764682.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20842 + ... + 20978.

It is an arithmetic number, because the mean of its divisors is an integer number (117369).

2^2864670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2864670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3755808).

2864670 is an abundant number, since it is smaller than the sum of its proper divisors (4646946).

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

2864670 is a wasteful number, since it uses less digits than its factorization.

2864670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2864670 is about 1692.5336038023. The cubic root of 2864670 is about 142.0228423215.

The spelling of 2864670 in words is "two million, eight hundred sixty-four thousand, six hundred seventy".