947397 has 16 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 543600.

The previous prime is 947389. The next prime is 947407. The reversal of 947397 is 793749.

It is not a de Polignac number, because 947397 - 2³ = 947389 is a prime.

It is a super-2 number, since 2×947397² = 1795122151218, which contains 22 as substring.

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 947397.

It is not an unprimeable number, because it can be changed into a prime (947327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129 + ... + 1382.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2⁹⁴⁷³⁹⁷ is an apocalyptic number.

It is an amenable number.

947397 is a deficient number, since it is larger than the sum of its proper divisors (504123).

947397 is a wasteful number, since it uses less digits than its factorization.

947397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544.

The product of its digits is 47628, while the sum is 39.

The square root of 947397 is about 973.3432077125. The cubic root of 947397 is about 98.2148901088.

The spelling of 947397 in words is "nine hundred forty-seven thousand, three hundred ninety-seven".