308772 has 30 divisors (see below), whose sum is σ = 808038. Its totient is φ = 102816.

The previous prime is 308761. The next prime is 308773. The reversal of 308772 is 277803.

It can be written as a sum of positive squares in only one way, i.e., 254016 + 54756 = 504^2 + 234^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308772.

It is not an unprimeable number, because it can be changed into a prime (308773) by changing a digit.

308772 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 9 ways as a sum of consecutive naturals, for example, 153 + ... + 800.

2³⁰⁸⁷⁷² is an apocalyptic number.

It is an amenable number.

308772 is an abundant number, since it is smaller than the sum of its proper divisors (499266).

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

308772 is a wasteful number, since it uses less digits than its factorization.

308772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 308772 is about 555.6725654556. The cubic root of 308772 is about 67.5895108779.

The spelling of 308772 in words is "three hundred eight thousand, seven hundred seventy-two".