528146973 has 20 divisors (see below), whose sum is σ = 835371900. Its totient is φ = 331385472.

The previous prime is 528146963. The next prime is 528146977. The reversal of 528146973 is 379641825.

It can be written as a sum of positive squares in 2 ways, for example, as 440874009 + 87272964 = 20997^2 + 9342^2 .

It is not a de Polignac number, because 528146973 - 2¹⁰ = 528145949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528146977) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 190398 + ... + 193151.

It is an arithmetic number, because the mean of its divisors is an integer number (41768595).

Almost surely, 2^528146973 is an apocalyptic number.

It is an amenable number.

528146973 is a deficient number, since it is larger than the sum of its proper divisors (307224927).

528146973 is a wasteful number, since it uses less digits than its factorization.

528146973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383578 (or 383569 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 528146973 is about 22981.4484530458. The cubic root of 528146973 is about 808.3229912542.

The spelling of 528146973 in words is "five hundred twenty-eight million, one hundred forty-six thousand, nine hundred seventy-three".