947455 has 4 divisors (see below), whose sum is σ = 1136952. Its totient is φ = 757960.

The previous prime is 947449. The next prime is 947483. The reversal of 947455 is 554749.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 947455 - 2⁵ = 947423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 947455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94741 + ... + 94750.

It is an arithmetic number, because the mean of its divisors is an integer number (284238).

2⁹⁴⁷⁴⁵⁵ is an apocalyptic number.

947455 is a deficient number, since it is larger than the sum of its proper divisors (189497).

947455 is a wasteful number, since it uses less digits than its factorization.

947455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189496.

The product of its digits is 25200, while the sum is 34.

The square root of 947455 is about 973.3730014748. The cubic root of 947455 is about 98.2168943188.

The spelling of 947455 in words is "nine hundred forty-seven thousand, four hundred fifty-five".