2786630 has 72 divisors (see below), whose sum is σ = 6549984. Its totient is φ = 850080.

The previous prime is 2786617. The next prime is 2786633. The reversal of 2786630 is 366872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2786633) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59267 + ... + 59313.

It is an arithmetic number, because the mean of its divisors is an integer number (90972).

2^2786630 is an apocalyptic number.

2786630 is an abundant number, since it is smaller than the sum of its proper divisors (3763354).

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

2786630 is a wasteful number, since it uses less digits than its factorization.

2786630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2786630 is about 1669.3202209283. The cubic root of 2786630 is about 140.7212776085.

The spelling of 2786630 in words is "two million, seven hundred eighty-six thousand, six hundred thirty".