2779491 has 48 divisors (see below), whose sum is σ = 4766720. Its totient is φ = 1425600.

The previous prime is 2779489. The next prime is 2779493. The reversal of 2779491 is 1949772.

2779491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2779489) and next prime (2779493).

It is not a de Polignac number, because 2779491 - 2¹ = 2779489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2779493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89646 + ... + 89676.

2^2779491 is an apocalyptic number.

2779491 is a deficient number, since it is larger than the sum of its proper divisors (1987229).

2779491 is a wasteful number, since it uses less digits than its factorization.

2779491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 77 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 2779491 is about 1667.1805541092. The cubic root of 2779491 is about 140.6010046960.

The spelling of 2779491 in words is "two million, seven hundred seventy-nine thousand, four hundred ninety-one".