2877642 has 12 divisors (see below), whose sum is σ = 6234930. Its totient is φ = 959208.

The previous prime is 2877631. The next prime is 2877649. The reversal of 2877642 is 2467782.

2877642 is a `hidden beast` number, since 2 + 8 + 7 + 7 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1879641 + 998001 = 1371^2 + 999^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2877597 and 2877606.

It is not an unprimeable number, because it can be changed into a prime (2877649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79917 + ... + 79952.

2^2877642 is an apocalyptic number.

2877642 is an abundant number, since it is smaller than the sum of its proper divisors (3357288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2877642 is a wasteful number, since it uses less digits than its factorization.

2877642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159877 (or 159874 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 2877642 is about 1696.3614001739. The cubic root of 2877642 is about 142.2368921590.

The spelling of 2877642 in words is "two million, eight hundred seventy-seven thousand, six hundred forty-two".