2987942 has 4 divisors (see below), whose sum is σ = 4481916. Its totient is φ = 1493970.

The previous prime is 2987923. The next prime is 2987947. The reversal of 2987942 is 2497892.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2987942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987947) 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 as a sum of consecutive naturals, namely, 746984 + ... + 746987.

It is an arithmetic number, because the mean of its divisors is an integer number (1120479).

2^2987942 is an apocalyptic number.

2987942 is a deficient number, since it is larger than the sum of its proper divisors (1493974).

2987942 is a wasteful number, since it uses less digits than its factorization.

2987942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493973.

The product of its digits is 72576, while the sum is 41.

The square root of 2987942 is about 1728.5664580802. The cubic root of 2987942 is about 144.0314681742.

The spelling of 2987942 in words is "two million, nine hundred eighty-seven thousand, nine hundred forty-two".