6113720 has 16 divisors (see below), whose sum is σ = 13755960. Its totient is φ = 2445472.

The previous prime is 6113711. The next prime is 6113729. The reversal of 6113720 is 273116.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6113711) and next prime (6113729).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6113692 and 6113701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6113729) 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, 76382 + ... + 76461.

Almost surely, 2^6113720 is an apocalyptic number.

It is an amenable number.

6113720 is an abundant number, since it is smaller than the sum of its proper divisors (7642240).

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

6113720 is a wasteful number, since it uses less digits than its factorization.

6113720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152854 (or 152850 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 6113720 is about 2472.5937798191. The cubic root of 6113720 is about 182.8528981995.

Adding to 6113720 its reverse (273116), we get a palindrome (6386836).

The spelling of 6113720 in words is "six million, one hundred thirteen thousand, seven hundred twenty".