1995749 has 16 divisors (see below), whose sum is σ = 2497536. Its totient is φ = 1555200.

The previous prime is 1995727. The next prime is 1995769. The reversal of 1995749 is 9475991.

It is a cyclic number.

It is not a de Polignac number, because 1995749 - 2¹² = 1991653 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3419 + ... + 3959.

It is an arithmetic number, because the mean of its divisors is an integer number (156096).

2^1995749 is an apocalyptic number.

It is an amenable number.

1995749 is a deficient number, since it is larger than the sum of its proper divisors (501787).

1995749 is a wasteful number, since it uses less digits than its factorization.

1995749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its digits is 102060, while the sum is 44.

The square root of 1995749 is about 1412.7098074268. The cubic root of 1995749 is about 125.9027762638.

It can be divided in two parts, 1995 and 749, that added together give a cube (2744 = 14³).

The spelling of 1995749 in words is "one million, nine hundred ninety-five thousand, seven hundred forty-nine".