1995487 has 4 divisors (see below), whose sum is σ = 2149000. Its totient is φ = 1841976.

The previous prime is 1995481. The next prime is 1995517. The reversal of 1995487 is 7845991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1995487 - 2⁷ = 1995359 is a prime.

It is a super-3 number, since 3×1995487³ = 23837898333290898909, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76737 + ... + 76762.

It is an arithmetic number, because the mean of its divisors is an integer number (537250).

2^1995487 is an apocalyptic number.

1995487 is a deficient number, since it is larger than the sum of its proper divisors (153513).

1995487 is a wasteful number, since it uses less digits than its factorization.

1995487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153512.

The product of its digits is 90720, while the sum is 43.

The square root of 1995487 is about 1412.6170747942. The cubic root of 1995487 is about 125.8972665577.

The spelling of 1995487 in words is "one million, nine hundred ninety-five thousand, four hundred eighty-seven".