1977882 has 16 divisors (see below), whose sum is σ = 4188672. Its totient is φ = 620480.

The previous prime is 1977863. The next prime is 1977917. The reversal of 1977882 is 2887791.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9594 + ... + 9797.

It is an arithmetic number, because the mean of its divisors is an integer number (261792).

2^1977882 is an apocalyptic number.

1977882 is an abundant number, since it is smaller than the sum of its proper divisors (2210790).

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

1977882 is a wasteful number, since it uses less digits than its factorization.

1977882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19413.

The product of its digits is 56448, while the sum is 42.

The square root of 1977882 is about 1406.3719280475. The cubic root of 1977882 is about 125.5259333825.

Subtracting 1977882 from its reverse (2887791), we obtain a palindrome (909909).

The spelling of 1977882 in words is "one million, nine hundred seventy-seven thousand, eight hundred eighty-two".