1975636 has 12 divisors (see below), whose sum is σ = 3723412. Its totient is φ = 911808.

The previous prime is 1975627. The next prime is 1975651. The reversal of 1975636 is 6365791.

It can be written as a sum of positive squares in 2 ways, for example, as 136900 + 1838736 = 370^2 + 1356^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1975595 and 1975604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18945 + ... + 19048.

2^1975636 is an apocalyptic number.

It is an amenable number.

1975636 is a deficient number, since it is larger than the sum of its proper divisors (1747776).

1975636 is a wasteful number, since it uses less digits than its factorization.

1975636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38010 (or 38008 counting only the distinct ones).

The product of its digits is 34020, while the sum is 37.

The square root of 1975636 is about 1405.5731926869. The cubic root of 1975636 is about 125.4784013878.

The spelling of 1975636 in words is "one million, nine hundred seventy-five thousand, six hundred thirty-six".