985155730 has 16 divisors (see below), whose sum is σ = 1909686744. Its totient is φ = 363749760.

The previous prime is 985155713. The next prime is 985155737. The reversal of 985155730 is 37551589.

It can be written as a sum of positive squares in 4 ways, for example, as 376398801 + 608756929 = 19401^2 + 24673^2 .

It is not an unprimeable number, because it can be changed into a prime (985155737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3788931 + ... + 3789190.

Almost surely, 2^985155730 is an apocalyptic number.

985155730 is a deficient number, since it is larger than the sum of its proper divisors (924531014).

985155730 is a wasteful number, since it uses less digits than its factorization.

985155730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578141.

The product of its (nonzero) digits is 189000, while the sum is 43.

The square root of 985155730 is about 31387.1905400914. The cubic root of 985155730 is about 995.0272224735.

The spelling of 985155730 in words is "nine hundred eighty-five million, one hundred fifty-five thousand, seven hundred thirty".