947949 has 8 divisors (see below), whose sum is σ = 1304832. Its totient is φ = 611520.

The previous prime is 947927. The next prime is 947959. The reversal of 947949 is 949749.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 947949 - 2⁵ = 947917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 947949.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 947949.

It is not an unprimeable number, because it can be changed into a prime (947959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5004 + ... + 5189.

It is an arithmetic number, because the mean of its divisors is an integer number (163104).

2⁹⁴⁷⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

947949 is a deficient number, since it is larger than the sum of its proper divisors (356883).

947949 is a wasteful number, since it uses less digits than its factorization.

947949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10227.

The product of its digits is 81648, while the sum is 42.

The square root of 947949 is about 973.6267251878. The cubic root of 947949 is about 98.2339613442.

The spelling of 947949 in words is "nine hundred forty-seven thousand, nine hundred forty-nine".