947979801 has 32 divisors (see below), whose sum is σ = 1443409920. Its totient is φ = 614611152.

The previous prime is 947979779. The next prime is 947979803. The reversal of 947979801 is 108979749.

It is not a de Polignac number, because 947979801 - 2¹⁹ = 947455513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (947979803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204556 + ... + 209138.

It is an arithmetic number, because the mean of its divisors is an integer number (45106560).

Almost surely, 2^947979801 is an apocalyptic number.

It is an amenable number.

947979801 is a deficient number, since it is larger than the sum of its proper divisors (495430119).

947979801 is a wasteful number, since it uses less digits than its factorization.

947979801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802 (or 4796 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 947979801 is about 30789.2806184230. The cubic root of 947979801 is about 982.3502528025.

The spelling of 947979801 in words is "nine hundred forty-seven million, nine hundred seventy-nine thousand, eight hundred one".