2979771 has 8 divisors (see below), whose sum is σ = 4065600. Its totient is φ = 1940232.

The previous prime is 2979761. The next prime is 2979773. The reversal of 2979771 is 1779792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2979771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2979773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11421 + ... + 11678.

It is an arithmetic number, because the mean of its divisors is an integer number (508200).

2^2979771 is an apocalyptic number.

2979771 is a deficient number, since it is larger than the sum of its proper divisors (1085829).

2979771 is a wasteful number, since it uses less digits than its factorization.

2979771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23145.

The product of its digits is 55566, while the sum is 42.

The square root of 2979771 is about 1726.2013208198. The cubic root of 2979771 is about 143.9000560352.

It can be divided in two parts, 29 and 79771, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 2979771 in words is "two million, nine hundred seventy-nine thousand, seven hundred seventy-one".