2780601 has 4 divisors (see below), whose sum is σ = 3707472. Its totient is φ = 1853732.

The previous prime is 2780599. The next prime is 2780621. The reversal of 2780601 is 1060872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2780601 - 2¹ = 2780599 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2780621) 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 3 ways as a sum of consecutive naturals, for example, 463431 + ... + 463436.

It is an arithmetic number, because the mean of its divisors is an integer number (926868).

2^2780601 is an apocalyptic number.

It is an amenable number.

2780601 is a deficient number, since it is larger than the sum of its proper divisors (926871).

2780601 is an equidigital number, since it uses as much as digits as its factorization.

2780601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926870.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 2780601 is about 1667.5134182369. The cubic root of 2780601 is about 140.6197187152.

The spelling of 2780601 in words is "two million, seven hundred eighty thousand, six hundred one".