98402785 has 24 divisors (see below), whose sum is σ = 129243384. Its totient is φ = 71884800.

The previous prime is 98402741. The next prime is 98402789. The reversal of 98402785 is 58720489.

It can be written as a sum of positive squares in 12 ways, for example, as 15374241 + 83028544 = 3921^2 + 9112^2 .

It is not a de Polignac number, because 98402785 - 2¹¹ = 98400737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98402789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84769 + ... + 85921.

It is an arithmetic number, because the mean of its divisors is an integer number (5385141).

Almost surely, 2^98402785 is an apocalyptic number.

It is an amenable number.

98402785 is a deficient number, since it is larger than the sum of its proper divisors (30840599).

98402785 is a wasteful number, since it uses less digits than its factorization.

98402785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 98402785 is about 9919.8177906653. The cubic root of 98402785 is about 461.6744034350.

The spelling of 98402785 in words is "ninety-eight million, four hundred two thousand, seven hundred eighty-five".