528399977 has 6 divisors (see below), whose sum is σ = 614669418. Its totient is φ = 452914224.

The previous prime is 528399973. The next prime is 528399979. The reversal of 528399977 is 779993825.

It can be written as a sum of positive squares in only one way, i.e., 526197721 + 2202256 = 22939^2 + 1484^2 .

It is not a de Polignac number, because 528399977 - 2² = 528399973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528399973) 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, 5391788 + ... + 5391885.

It is an arithmetic number, because the mean of its divisors is an integer number (102444903).

Almost surely, 2^528399977 is an apocalyptic number.

It is an amenable number.

528399977 is a deficient number, since it is larger than the sum of its proper divisors (86269441).

528399977 is a wasteful number, since it uses less digits than its factorization.

528399977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10783687 (or 10783680 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 59.

The square root of 528399977 is about 22986.9523208276. The cubic root of 528399977 is about 808.4520439063.

The spelling of 528399977 in words is "five hundred twenty-eight million, three hundred ninety-nine thousand, nine hundred seventy-seven".