985820623 has 8 divisors (see below), whose sum is σ = 1009285200. Its totient is φ = 962380608.

The previous prime is 985820621. The next prime is 985820653. The reversal of 985820623 is 326028589.

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 985820623 - 2¹ = 985820621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 985820623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985820621) 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, 94323 + ... + 104251.

It is an arithmetic number, because the mean of its divisors is an integer number (126160650).

Almost surely, 2^985820623 is an apocalyptic number.

985820623 is the 19858-th heptagonal number.

985820623 is a deficient number, since it is larger than the sum of its proper divisors (23464577).

985820623 is a wasteful number, since it uses less digits than its factorization.

985820623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12281.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 985820623 is about 31397.7805425798. The cubic root of 985820623 is about 995.2510239271.

The spelling of 985820623 in words is "nine hundred eighty-five million, eight hundred twenty thousand, six hundred twenty-three".