1013387 has 4 divisors (see below), whose sum is σ = 1073016. Its totient is φ = 953760.

The previous prime is 1013377. The next prime is 1013399. The reversal of 1013387 is 7833101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7833101 = 191 ⋅41011.

It is a cyclic number.

It is not a de Polignac number, because 1013387 - 2¹² = 1009291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29789 + ... + 29822.

It is an arithmetic number, because the mean of its divisors is an integer number (268254).

2^1013387 is an apocalyptic number.

1013387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1013387 is a deficient number, since it is larger than the sum of its proper divisors (59629).

1013387 is an equidigital number, since it uses as much as digits as its factorization.

1013387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59628.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1013387 is about 1006.6712472302. The cubic root of 1013387 is about 100.4442567699. Note that the first 3 decimals are identical.

Adding to 1013387 its reverse (7833101), we get a palindrome (8846488).

The spelling of 1013387 in words is "one million, thirteen thousand, three hundred eighty-seven".