979526521 has 8 divisors (see below), whose sum is σ = 984492000. Its totient is φ = 974574048.

The previous prime is 979526491. The next prime is 979526539. The reversal of 979526521 is 125625979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 979526521 - 2⁷ = 979526393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979526221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170325 + ... + 175981.

It is an arithmetic number, because the mean of its divisors is an integer number (123061500).

Almost surely, 2^979526521 is an apocalyptic number.

It is an amenable number.

979526521 is a deficient number, since it is larger than the sum of its proper divisors (4965479).

979526521 is a wasteful number, since it uses less digits than its factorization.

979526521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503.

The product of its digits is 340200, while the sum is 46.

The square root of 979526521 is about 31297.3884054245. The cubic root of 979526521 is about 993.1283962181.

The spelling of 979526521 in words is "nine hundred seventy-nine million, five hundred twenty-six thousand, five hundred twenty-one".