1977933 has 8 divisors (see below), whose sum is σ = 2792448. Its totient is φ = 1241024.

The previous prime is 1977929. The next prime is 1977953. The reversal of 1977933 is 3397791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1977933 - 2² = 1977929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1977891 and 1977900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1977953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19341 + ... + 19442.

It is an arithmetic number, because the mean of its divisors is an integer number (349056).

2^1977933 is an apocalyptic number.

It is an amenable number.

1977933 is a deficient number, since it is larger than the sum of its proper divisors (814515).

1977933 is a wasteful number, since it uses less digits than its factorization.

1977933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38803.

The product of its digits is 35721, while the sum is 39.

The square root of 1977933 is about 1406.3900596918. The cubic root of 1977933 is about 125.5270122752.

The spelling of 1977933 in words is "one million, nine hundred seventy-seven thousand, nine hundred thirty-three".