98987656 has 8 divisors (see below), whose sum is σ = 185601870. Its totient is φ = 49493824.

The previous prime is 98987641. The next prime is 98987657. The reversal of 98987656 is 65678989.

98987656 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 96707556 + 2280100 = 9834^2 + 1510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 98987656.

It is not an unprimeable number, because it can be changed into a prime (98987657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6186721 + ... + 6186736.

Almost surely, 2^98987656 is an apocalyptic number.

It is an amenable number.

98987656 is a deficient number, since it is larger than the sum of its proper divisors (86614214).

98987656 is a wasteful number, since it uses less digits than its factorization.

98987656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12373463 (or 12373459 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The square root of 98987656 is about 9949.2540423893. The cubic root of 98987656 is about 462.5872731338.

The spelling of 98987656 in words is "ninety-eight million, nine hundred eighty-seven thousand, six hundred fifty-six".