98897985 has 12 divisors (see below), whose sum is σ = 171423252. Its totient is φ = 52745568.

The previous prime is 98897951. The next prime is 98897987. The reversal of 98897985 is 58979889.

It can be written as a sum of positive squares in 2 ways, for example, as 31674384 + 67223601 = 5628^2 + 8199^2 .

It is not a de Polignac number, because 98897985 - 2⁹ = 98897473 is a prime.

It is a super-2 number, since 2×98897985² = 19561622874120450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98897987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098822 + ... + 1098911.

It is an arithmetic number, because the mean of its divisors is an integer number (14285271).

Almost surely, 2^98897985 is an apocalyptic number.

It is an amenable number.

98897985 is a deficient number, since it is larger than the sum of its proper divisors (72525267).

98897985 is a wasteful number, since it uses less digits than its factorization.

98897985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197744 (or 2197741 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The square root of 98897985 is about 9944.7466031066. The cubic root of 98897985 is about 462.4475479840.

The spelling of 98897985 in words is "ninety-eight million, eight hundred ninety-seven thousand, nine hundred eighty-five".