1986948 has 36 divisors (see below), whose sum is σ = 5083260. Its totient is φ = 654336.

The previous prime is 1986923. The next prime is 1986949. The reversal of 1986948 is 8496891.

It can be written as a sum of positive squares in 2 ways, for example, as 589824 + 1397124 = 768^2 + 1182^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1986949) 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, 3208 + ... + 3776.

2^1986948 is an apocalyptic number.

1986948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1986948 is an abundant number, since it is smaller than the sum of its proper divisors (3096312).

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

1986948 is a wasteful number, since it uses less digits than its factorization.

1986948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 671 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 1986948 is about 1409.5914301669. The cubic root of 1986948 is about 125.7174317886.

The spelling of 1986948 in words is "one million, nine hundred eighty-six thousand, nine hundred forty-eight".