1977952 has 24 divisors (see below), whose sum is σ = 3935736. Its totient is φ = 978432.

The previous prime is 1977929. The next prime is 1977953. The reversal of 1977952 is 2597791.

It is a super-2 number, since 2×1977952² = 7824588228608, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 3343 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (163989).

2^1977952 is an apocalyptic number.

It is an amenable number.

1977952 is a deficient number, since it is larger than the sum of its proper divisors (1957784).

1977952 is a wasteful number, since it uses less digits than its factorization.

1977952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 662 counting only the distinct ones).

The product of its digits is 39690, while the sum is 40.

The square root of 1977952 is about 1406.3968145584. The cubic root of 1977952 is about 125.5274142109.

The spelling of 1977952 in words is "one million, nine hundred seventy-seven thousand, nine hundred fifty-two".