1087073 has 4 divisors (see below), whose sum is σ = 1170708. Its totient is φ = 1003440.
The previous prime is 1087061. The next prime is 1087091. The reversal of 1087073 is 3707801.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3707801 = 367 ⋅10103.
It can be written as a sum of positive squares in 2 ways, for example, as 717409 + 369664 = 847^2 + 608^2 .
It is a cyclic number.
It is not a de Polignac number, because 1087073 - 28 = 1086817 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1087673) 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, 41798 + ... + 41823.
It is an arithmetic number, because the mean of its divisors is an integer number (292677).
21087073 is an apocalyptic number.
1087073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
1087073 is a deficient number, since it is larger than the sum of its proper divisors (83635).
1087073 is an equidigital number, since it uses as much as digits as its factorization.
1087073 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83634.
The product of its (nonzero) digits is 1176, while the sum is 26.
The square root of 1087073 is about 1042.6279298005. The cubic root of 1087073 is about 102.8220448113.
The spelling of 1087073 in words is "one million, eighty-seven thousand, seventy-three".
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