1977552 has 60 divisors (see below), whose sum is σ = 5725824. Its totient is φ = 636480.

The previous prime is 1977551. The next prime is 1977557. The reversal of 1977552 is 2557791.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1977551) 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, 4243 + ... + 4685.

2^1977552 is an apocalyptic number.

1977552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1977552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2862912).

1977552 is an abundant number, since it is smaller than the sum of its proper divisors (3748272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1977552 is a wasteful number, since it uses less digits than its factorization.

1977552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 479 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The square root of 1977552 is about 1406.2545999925. The cubic root of 1977552 is about 125.5189518635.

The spelling of 1977552 in words is "one million, nine hundred seventy-seven thousand, five hundred fifty-two".