529797980 has 12 divisors (see below), whose sum is σ = 1112575800. Its totient is φ = 211919184.

The previous prime is 529797971. The next prime is 529798021. The reversal of 529797980 is 89797925.

It is a super-2 number, since 2×529797980² = 561371799224160800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13244930 + ... + 13244969.

It is an arithmetic number, because the mean of its divisors is an integer number (92714650).

Almost surely, 2^529797980 is an apocalyptic number.

It is an amenable number.

529797980 is an abundant number, since it is smaller than the sum of its proper divisors (582777820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

529797980 is a wasteful number, since it uses less digits than its factorization.

529797980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26489908 (or 26489906 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 56.

The square root of 529797980 is about 23017.3408542342. The cubic root of 529797980 is about 809.1643976433.

The spelling of 529797980 in words is "five hundred twenty-nine million, seven hundred ninety-seven thousand, nine hundred eighty".