1995788 has 6 divisors (see below), whose sum is σ = 3492636. Its totient is φ = 997892.

The previous prime is 1995787. The next prime is 1995797. The reversal of 1995788 is 8875991.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1995781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249470 + ... + 249477.

It is an arithmetic number, because the mean of its divisors is an integer number (582106).

2^1995788 is an apocalyptic number.

It is an amenable number.

1995788 is a deficient number, since it is larger than the sum of its proper divisors (1496848).

1995788 is a wasteful number, since it uses less digits than its factorization.

1995788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498951 (or 498949 counting only the distinct ones).

The product of its digits is 181440, while the sum is 47.

The square root of 1995788 is about 1412.7236106189. The cubic root of 1995788 is about 125.9035963696.

The spelling of 1995788 in words is "one million, nine hundred ninety-five thousand, seven hundred eighty-eight".