2780972 has 6 divisors (see below), whose sum is σ = 4866708. Its totient is φ = 1390484.

The previous prime is 2780971. The next prime is 2780993. The reversal of 2780972 is 2790872.

It is not an unprimeable number, because it can be changed into a prime (2780971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347618 + ... + 347625.

It is an arithmetic number, because the mean of its divisors is an integer number (811118).

2^2780972 is an apocalyptic number.

It is an amenable number.

2780972 is a deficient number, since it is larger than the sum of its proper divisors (2085736).

2780972 is a wasteful number, since it uses less digits than its factorization.

2780972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695247 (or 695245 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2780972 is about 1667.6246580091. The cubic root of 2780972 is about 140.6259724706.

The spelling of 2780972 in words is "two million, seven hundred eighty thousand, nine hundred seventy-two".