1147830 has 16 divisors (see below), whose sum is σ = 2754864. Its totient is φ = 306080.

The previous prime is 1147819. The next prime is 1147841. The reversal of 1147830 is 387411.

It is an interprime number because it is at equal distance from previous prime (1147819) and next prime (1147841).

It is a self number, because there is not a number n which added to its sum of digits gives 1147830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19101 + ... + 19160.

It is an arithmetic number, because the mean of its divisors is an integer number (172179).

2^1147830 is an apocalyptic number.

1147830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1147830 is an abundant number, since it is smaller than the sum of its proper divisors (1607034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1147830 is a wasteful number, since it uses less digits than its factorization.

1147830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38271.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1147830 is about 1071.3682840182. The cubic root of 1147830 is about 104.7030156702.

The spelling of 1147830 in words is "one million, one hundred forty-seven thousand, eight hundred thirty".