1071887 has 8 divisors (see below), whose sum is σ = 1124352. Its totient is φ = 1020600.

The previous prime is 1071871. The next prime is 1071899. The reversal of 1071887 is 7881701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1071887 - 2⁴ = 1071871 is a prime.

It is a super-2 number, since 2×1071887² = 2297883481538, which contains 22 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 (1071817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1958 + ... + 2444.

It is an arithmetic number, because the mean of its divisors is an integer number (140544).

2^1071887 is an apocalyptic number.

1071887 is a deficient number, since it is larger than the sum of its proper divisors (52465).

1071887 is an equidigital number, since it uses as much as digits as its factorization.

1071887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 3136, while the sum is 32.

The square root of 1071887 is about 1035.3197573697. The cubic root of 1071887 is about 102.3410027485.

The spelling of 1071887 in words is "one million, seventy-one thousand, eight hundred eighty-seven".