98991628 has 6 divisors (see below), whose sum is σ = 173235356. Its totient is φ = 49495812.

The previous prime is 98991623. The next prime is 98991631. The reversal of 98991628 is 82619989.

It is not an unprimeable number, because it can be changed into a prime (98991623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12373950 + ... + 12373957.

Almost surely, 2^98991628 is an apocalyptic number.

It is an amenable number.

98991628 is a deficient number, since it is larger than the sum of its proper divisors (74243728).

98991628 is a wasteful number, since it uses less digits than its factorization.

98991628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24747911 (or 24747909 counting only the distinct ones).

The product of its digits is 559872, while the sum is 52.

The square root of 98991628 is about 9949.4536533420. The cubic root of 98991628 is about 462.5934603432.

The spelling of 98991628 in words is "ninety-eight million, nine hundred ninety-one thousand, six hundred twenty-eight".