1977356 has 12 divisors (see below), whose sum is σ = 3610992. Its totient is φ = 945648.

The previous prime is 1977343. The next prime is 1977359. The reversal of 1977356 is 6537791.

It is not an unprimeable number, because it can be changed into a prime (1977359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10655 + ... + 10838.

It is an arithmetic number, because the mean of its divisors is an integer number (300916).

2^1977356 is an apocalyptic number.

It is an amenable number.

1977356 is a deficient number, since it is larger than the sum of its proper divisors (1633636).

1977356 is a wasteful number, since it uses less digits than its factorization.

1977356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21520 (or 21518 counting only the distinct ones).

The product of its digits is 39690, while the sum is 38.

The square root of 1977356 is about 1406.1849096047. The cubic root of 1977356 is about 125.5148048967.

The spelling of 1977356 in words is "one million, nine hundred seventy-seven thousand, three hundred fifty-six".