1023887 has 4 divisors (see below), whose sum is σ = 1025976. Its totient is φ = 1021800.

The previous prime is 1023871. The next prime is 1023941. The reversal of 1023887 is 7883201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7883201 = 71 ⋅111031.

It is a cyclic number.

It is not a de Polignac number, because 1023887 - 2⁴ = 1023871 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023857) 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, 137 + ... + 1437.

It is an arithmetic number, because the mean of its divisors is an integer number (256494).

2^1023887 is an apocalyptic number.

1023887 is a deficient number, since it is larger than the sum of its proper divisors (2089).

1023887 is an equidigital number, since it uses as much as digits as its factorization.

1023887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1023887 is about 1011.8730157485. The cubic root of 1023887 is about 100.7899762750.

The spelling of 1023887 in words is "one million, twenty-three thousand, eight hundred eighty-seven".