98651985 has 16 divisors (see below), whose sum is σ = 158348736. Its totient is φ = 52445888.

The previous prime is 98651983. The next prime is 98652017. The reversal of 98651985 is 58915689.

It is a cyclic number.

It is not a de Polignac number, because 98651985 - 2¹ = 98651983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98651983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5619 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (9896796).

Almost surely, 2^98651985 is an apocalyptic number.

It is an amenable number.

98651985 is a deficient number, since it is larger than the sum of its proper divisors (59696751).

98651985 is a wasteful number, since it uses less digits than its factorization.

98651985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21072.

The product of its digits is 777600, while the sum is 51.

The square root of 98651985 is about 9932.3705629623. The cubic root of 98651985 is about 462.0637971531.

The spelling of 98651985 in words is "ninety-eight million, six hundred fifty-one thousand, nine hundred eighty-five".