1977297 has 12 divisors (see below), whose sum is σ = 3067056. Its totient is φ = 1129800.

The previous prime is 1977259. The next prime is 1977301. The reversal of 1977297 is 7927791.

It is not a de Polignac number, because 1977297 - 2⁶ = 1977233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1977697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6579 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (255588).

2^1977297 is an apocalyptic number.

It is an amenable number.

1977297 is a deficient number, since it is larger than the sum of its proper divisors (1089759).

1977297 is a wasteful number, since it uses less digits than its factorization.

1977297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13468 (or 13461 counting only the distinct ones).

The product of its digits is 55566, while the sum is 42.

The square root of 1977297 is about 1406.1639306994. The cubic root of 1977297 is about 125.5135565214.

The spelling of 1977297 in words is "one million, nine hundred seventy-seven thousand, two hundred ninety-seven".