947729464 has 64 divisors (see below), whose sum is σ = 2091471840. Its totient is φ = 397762560.

The previous prime is 947729459. The next prime is 947729491. The reversal of 947729464 is 464927749.

947729464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×947729464² = 1796382273867454592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73312 + ... + 85264.

Almost surely, 2^947729464 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 947729464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045735920).

947729464 is an abundant number, since it is smaller than the sum of its proper divisors (1143742376).

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

947729464 is a wasteful number, since it uses less digits than its factorization.

947729464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12040 (or 12036 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 52.

The square root of 947729464 is about 30785.2150227995. The cubic root of 947729464 is about 982.2637740733.

The spelling of 947729464 in words is "nine hundred forty-seven million, seven hundred twenty-nine thousand, four hundred sixty-four".