947072020 has 48 divisors (see below), whose sum is σ = 2011097088. Its totient is φ = 374613120.

The previous prime is 947071981. The next prime is 947072029. The reversal of 947072020 is 20270749.

It is a happy number.

947072020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×947072020² = 1793890822133760800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947072029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450014 + ... + 1450666.

It is an arithmetic number, because the mean of its divisors is an integer number (41897856).

Almost surely, 2^947072020 is an apocalyptic number.

It is an amenable number.

947072020 is an abundant number, since it is smaller than the sum of its proper divisors (1064025068).

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

947072020 is a wasteful number, since it uses less digits than its factorization.

947072020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 947072020 is about 30774.5352523803. The cubic root of 947072020 is about 982.0365879988.

The spelling of 947072020 in words is "nine hundred forty-seven million, seventy-two thousand, twenty".