947428983 has 6 divisors (see below), whose sum is σ = 1368508544. Its totient is φ = 631619316.

The previous prime is 947428969. The next prime is 947429011. The reversal of 947428983 is 389824749.

It is not a de Polignac number, because 947428983 - 2¹⁶ = 947363447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947428883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52634935 + ... + 52634952.

Almost surely, 2^947428983 is an apocalyptic number.

947428983 is a deficient number, since it is larger than the sum of its proper divisors (421079561).

947428983 is a wasteful number, since it uses less digits than its factorization.

947428983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105269893 (or 105269890 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 947428983 is about 30780.3343549091. The cubic root of 947428983 is about 982.1599530250.

The spelling of 947428983 in words is "nine hundred forty-seven million, four hundred twenty-eight thousand, nine hundred eighty-three".