980085690 has 32 divisors (see below), whose sum is σ = 2613562560. Its totient is φ = 261356112.

The previous prime is 980085679. The next prime is 980085697. The reversal of 980085690 is 96580089.

980085690 is a `hidden beast` number, since 9 + 80 + 0 + 8 + 569 + 0 = 666.

It is a super-2 number, since 2×980085690² = 1921135919485552200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (980085697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1814704 + ... + 1815243.

It is an arithmetic number, because the mean of its divisors is an integer number (81673830).

Almost surely, 2^980085690 is an apocalyptic number.

980085690 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

980085690 is an abundant number, since it is smaller than the sum of its proper divisors (1633476870).

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

980085690 is a wasteful number, since it uses less digits than its factorization.

980085690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629963 (or 3629957 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 980085690 is about 31306.3202884018. The cubic root of 980085690 is about 993.3173381756.

The spelling of 980085690 in words is "nine hundred eighty million, eighty-five thousand, six hundred ninety".