947671879 has 12 divisors (see below), whose sum is σ = 1190464912. Its totient is φ = 738444960.

The previous prime is 947671877. The next prime is 947671897. The reversal of 947671879 is 978176749.

It is not a de Polignac number, because 947671879 - 2¹ = 947671877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947671877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558582 + ... + 560275.

Almost surely, 2^947671879 is an apocalyptic number.

947671879 is a deficient number, since it is larger than the sum of its proper divisors (242793033).

947671879 is a wasteful number, since it uses less digits than its factorization.

947671879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118886 (or 1118875 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 58.

The square root of 947671879 is about 30784.2797382040. The cubic root of 947671879 is about 982.2438792239.

The spelling of 947671879 in words is "nine hundred forty-seven million, six hundred seventy-one thousand, eight hundred seventy-nine".