98961785 has 32 divisors (see below), whose sum is σ = 135596160. Its totient is φ = 68732928.

The previous prime is 98961781. The next prime is 98961787. The reversal of 98961785 is 58716989.

It is a cyclic number.

It is not a de Polignac number, because 98961785 - 2² = 98961781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98961781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280169 + ... + 280521.

It is an arithmetic number, because the mean of its divisors is an integer number (4237380).

Almost surely, 2^98961785 is an apocalyptic number.

98961785 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

98961785 is a deficient number, since it is larger than the sum of its proper divisors (36634375).

98961785 is a wasteful number, since it uses less digits than its factorization.

98961785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617.

The product of its digits is 1088640, while the sum is 53.

The square root of 98961785 is about 9947.9538097038. The cubic root of 98961785 is about 462.5469696637.

The spelling of 98961785 in words is "ninety-eight million, nine hundred sixty-one thousand, seven hundred eighty-five".