2803972 has 6 divisors (see below), whose sum is σ = 4906958. Its totient is φ = 1401984.

The previous prime is 2803967. The next prime is 2803991. The reversal of 2803972 is 2793082.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 1201216 = 1266^2 + 1096^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350493 + ... + 350500.

2^2803972 is an apocalyptic number.

It is an amenable number.

2803972 is a deficient number, since it is larger than the sum of its proper divisors (2102986).

2803972 is a wasteful number, since it uses less digits than its factorization.

2803972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700997 (or 700995 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2803972 is about 1674.5064944634. The cubic root of 2803972 is about 141.0125904623.

The spelling of 2803972 in words is "two million, eight hundred three thousand, nine hundred seventy-two".