947951 has 4 divisors (see below), whose sum is σ = 950232. Its totient is φ = 945672.

The previous prime is 947927. The next prime is 947959. The reversal of 947951 is 159749.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159749 = 17 ⋅9397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-947951 is a prime.

It is a super-2 number, since 2×947951² = 1797222196802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 320 + ... + 1413.

It is an arithmetic number, because the mean of its divisors is an integer number (237558).

2⁹⁴⁷⁹⁵¹ is an apocalyptic number.

947951 is a deficient number, since it is larger than the sum of its proper divisors (2281).

947951 is a wasteful number, since it uses less digits than its factorization.

947951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280.

The product of its digits is 11340, while the sum is 35.

The square root of 947951 is about 973.6277522750. The cubic root of 947951 is about 98.2340304294.

The spelling of 947951 in words is "nine hundred forty-seven thousand, nine hundred fifty-one".