2977871 has 16 divisors (see below), whose sum is σ = 3396288. Its totient is φ = 2592000.

The previous prime is 2977861. The next prime is 2977883. The reversal of 2977871 is 1787792.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2977871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2977801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19646 + ... + 19796.

It is an arithmetic number, because the mean of its divisors is an integer number (212268).

2^2977871 is an apocalyptic number.

2977871 is a deficient number, since it is larger than the sum of its proper divisors (418417).

2977871 is a wasteful number, since it uses less digits than its factorization.

2977871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242.

The product of its digits is 49392, while the sum is 41.

The square root of 2977871 is about 1725.6508916928. The cubic root of 2977871 is about 143.8694643959.

The spelling of 2977871 in words is "two million, nine hundred seventy-seven thousand, eight hundred seventy-one".