76728270 has 64 divisors (see below), whose sum is σ = 195022080. Its totient is φ = 19266048.

The previous prime is 76728257. The next prime is 76728277. The reversal of 76728270 is 7282767.

It is a super-3 number, since 3×76728270³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76728277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129094 + ... + 129686.

It is an arithmetic number, because the mean of its divisors is an integer number (3047220).

Almost surely, 2^76728270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76728270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97511040).

76728270 is an abundant number, since it is smaller than the sum of its proper divisors (118293810).

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

76728270 is a wasteful number, since it uses less digits than its factorization.

76728270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 76728270 is about 8759.4674495656. The cubic root of 76728270 is about 424.9310522524.

The spelling of 76728270 in words is "seventy-six million, seven hundred twenty-eight thousand, two hundred seventy".