947772 has 36 divisors (see below), whose sum is σ = 2738736. Its totient is φ = 270720.

The previous prime is 947753. The next prime is 947773. The reversal of 947772 is 277749.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 9² + 4⁶ + 7⁴ + 7⁶ + 7⁷ + 2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947773) by changing a digit.

947772 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 11 ways as a sum of consecutive naturals, for example, 1629 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (76076).

2⁹⁴⁷⁷⁷² is an apocalyptic number.

It is an amenable number.

947772 is an abundant number, since it is smaller than the sum of its proper divisors (1790964).

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

947772 is a wasteful number, since it uses less digits than its factorization.

947772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778 (or 3773 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 947772 is about 973.5358236860. The cubic root of 947772 is about 98.2278469177.

The spelling of 947772 in words is "nine hundred forty-seven thousand, seven hundred seventy-two".