1047855 has 8 divisors (see below), whose sum is σ = 1676592. Its totient is φ = 558848.

The previous prime is 1047841. The next prime is 1047859. The reversal of 1047855 is 5587401.

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 1047855 - 2¹² = 1043759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047859) 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, 34914 + ... + 34943.

It is an arithmetic number, because the mean of its divisors is an integer number (209574).

2^1047855 is an apocalyptic number.

1047855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1047855 is a deficient number, since it is larger than the sum of its proper divisors (628737).

1047855 is an equidigital number, since it uses as much as digits as its factorization.

1047855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69865.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 1047855 is about 1023.6478886805. The cubic root of 1047855 is about 101.5703767461.

The spelling of 1047855 in words is "one million, forty-seven thousand, eight hundred fifty-five".