1977934 has 12 divisors (see below), whose sum is σ = 3451464. Its totient is φ = 847644.

The previous prime is 1977929. The next prime is 1977953. The reversal of 1977934 is 4397791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9994 + ... + 10189.

It is an arithmetic number, because the mean of its divisors is an integer number (287622).

2^1977934 is an apocalyptic number.

1977934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1977934 is a deficient number, since it is larger than the sum of its proper divisors (1473530).

1977934 is a wasteful number, since it uses less digits than its factorization.

1977934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20199 (or 20192 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 1977934 is about 1406.3904152119. The cubic root of 1977934 is about 125.5270334298.

The spelling of 1977934 in words is "one million, nine hundred seventy-seven thousand, nine hundred thirty-four".