985279501 has 2 divisors, whose sum is σ = 985279502. Its totient is φ = 985279500.

The previous prime is 985279483. The next prime is 985279517. The reversal of 985279501 is 105972589.

985279501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578450601 + 406828900 = 24051^2 + 20170^2 .

It is an emirp because it is prime and its reverse (105972589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985279501 - 2²¹ = 983182349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985279531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492639750 + 492639751.

It is an arithmetic number, because the mean of its divisors is an integer number (492639751).

Almost surely, 2^985279501 is an apocalyptic number.

It is an amenable number.

985279501 is a deficient number, since it is larger than the sum of its proper divisors (1).

985279501 is an equidigital number, since it uses as much as digits as its factorization.

985279501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 985279501 is about 31389.1621582992. The cubic root of 985279501 is about 995.0688911334.

The spelling of 985279501 in words is "nine hundred eighty-five million, two hundred seventy-nine thousand, five hundred one".