6157720 has 32 divisors (see below), whose sum is σ = 13932000. Its totient is φ = 2449408.

The previous prime is 6157717. The next prime is 6157727. The reversal of 6157720 is 277516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6157727) 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, 9981 + ... + 10579.

It is an arithmetic number, because the mean of its divisors is an integer number (435375).

Almost surely, 2^6157720 is an apocalyptic number.

It is an amenable number.

6157720 is an abundant number, since it is smaller than the sum of its proper divisors (7774280).

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

6157720 is a wasteful number, since it uses less digits than its factorization.

6157720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 6157720 is about 2481.4753675989. The cubic root of 6157720 is about 183.2905097408.

The spelling of 6157720 in words is "six million, one hundred fifty-seven thousand, seven hundred twenty".