947989746 has 36 divisors (see below), whose sum is σ = 2257683246. Its totient is φ = 287268960.

The previous prime is 947989733. The next prime is 947989759. The reversal of 947989746 is 647989749.

It is an interprime number because it is at equal distance from previous prime (947989733) and next prime (947989759).

It can be written as a sum of positive squares in only one way, i.e., 947962521 + 27225 = 30789^2 + 165^2 .

It is a super-2 number, since 2×947989746² = 1797369117042289032, which contains 22 as substring.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 215451 + ... + 219806.

Almost surely, 2^947989746 is an apocalyptic number.

947989746 is an abundant number, since it is smaller than the sum of its proper divisors (1309693500).

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

947989746 is a wasteful number, since it uses less digits than its factorization.

947989746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435287 (or 435273 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 947989746 is about 30789.4421190122. The cubic root of 947989746 is about 982.3536879808.

It can be divided in two parts, 9479 and 89746, that added together give a square (99225 = 315²).

The spelling of 947989746 in words is "nine hundred forty-seven million, nine hundred eighty-nine thousand, seven hundred forty-six".