13047750 has 64 divisors (see below), whose sum is σ = 36204480. Its totient is φ = 3477600.

The previous prime is 13047707. The next prime is 13047751. The reversal of 13047750 is 5774031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13047751) 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 31 ways as a sum of consecutive naturals, for example, 5784 + ... + 7716.

It is an arithmetic number, because the mean of its divisors is an integer number (565695).

Almost surely, 2^13047750 is an apocalyptic number.

13047750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13047750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18102240).

13047750 is an abundant number, since it is smaller than the sum of its proper divisors (23156730).

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

13047750 is a wasteful number, since it uses less digits than its factorization.

13047750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 13047750 is about 3612.1669396638. The cubic root of 13047750 is about 235.4210047843.

The spelling of 13047750 in words is "thirteen million, forty-seven thousand, seven hundred fifty".