947401679 has 4 divisors (see below), whose sum is σ = 1082744784. Its totient is φ = 812058576.

The previous prime is 947401669. The next prime is 947401691. The reversal of 947401679 is 976104749.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 976104749 = 3109 ⋅313961.

It is not a de Polignac number, because 947401679 - 2²⁴ = 930624463 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947401669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67671542 + ... + 67671555.

It is an arithmetic number, because the mean of its divisors is an integer number (270686196).

Almost surely, 2^947401679 is an apocalyptic number.

947401679 is a deficient number, since it is larger than the sum of its proper divisors (135343105).

947401679 is a wasteful number, since it uses less digits than its factorization.

947401679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135343104.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 947401679 is about 30779.8908217687. The cubic root of 947401679 is about 982.1505179632.

The spelling of 947401679 in words is "nine hundred forty-seven million, four hundred one thousand, six hundred seventy-nine".