98897790 has 16 divisors (see below), whose sum is σ = 237354768. Its totient is φ = 26372736.

The previous prime is 98897767. The next prime is 98897791. The reversal of 98897790 is 9779889.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 98897790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98897791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648267 + ... + 1648326.

It is an arithmetic number, because the mean of its divisors is an integer number (14834673).

Almost surely, 2^98897790 is an apocalyptic number.

98897790 is an abundant number, since it is smaller than the sum of its proper divisors (138456978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98897790 is a wasteful number, since it uses less digits than its factorization.

98897790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296603.

The product of its (nonzero) digits is 2286144, while the sum is 57.

The square root of 98897790 is about 9944.7367989304. The cubic root of 98897790 is about 462.4472440434.

The spelling of 98897790 in words is "ninety-eight million, eight hundred ninety-seven thousand, seven hundred ninety".