771672 has 64 divisors (see below), whose sum is σ = 2188800. Its totient is φ = 224640.

The previous prime is 771653. The next prime is 771679. The reversal of 771672 is 276177.

It is a happy number.

771672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771679) by changing a digit.

771672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9729 + ... + 9807.

It is an arithmetic number, because the mean of its divisors is an integer number (34200).

2⁷⁷¹⁶⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 771672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094400).

771672 is an abundant number, since it is smaller than the sum of its proper divisors (1417128).

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

771672 is a wasteful number, since it uses less digits than its factorization.

771672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 132 counting only the distinct ones).

The product of its digits is 4116, while the sum is 30.

The square root of 771672 is about 878.4486325335. The cubic root of 771672 is about 91.7228584766.

The spelling of 771672 in words is "seven hundred seventy-one thousand, six hundred seventy-two".