947032290 has 32 divisors (see below), whose sum is σ = 2525420160. Its totient is φ = 252541872.

The previous prime is 947032223. The next prime is 947032297. The reversal of 947032290 is 92230749.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (947032297) 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, 1753494 + ... + 1754033.

It is an arithmetic number, because the mean of its divisors is an integer number (78919380).

Almost surely, 2^947032290 is an apocalyptic number.

947032290 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

947032290 is an abundant number, since it is smaller than the sum of its proper divisors (1578387870).

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

947032290 is a wasteful number, since it uses less digits than its factorization.

947032290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507543 (or 3507537 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 947032290 is about 30773.8897443921. The cubic root of 947032290 is about 982.0228555482.

The spelling of 947032290 in words is "nine hundred forty-seven million, thirty-two thousand, two hundred ninety".