2904786 has 12 divisors (see below), whose sum is σ = 6293742. Its totient is φ = 968256.

The previous prime is 2904767. The next prime is 2904791. The reversal of 2904786 is 6874092.

It can be written as a sum of positive squares in only one way, i.e., 1625625 + 1279161 = 1275^2 + 1131^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2904786.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80671 + ... + 80706.

2^2904786 is an apocalyptic number.

2904786 is an abundant number, since it is smaller than the sum of its proper divisors (3388956).

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

2904786 is a wasteful number, since it uses less digits than its factorization.

2904786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161385 (or 161382 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2904786 is about 1704.3432752823. The cubic root of 2904786 is about 142.6827203623.

The spelling of 2904786 in words is "two million, nine hundred four thousand, seven hundred eighty-six".