98172810 has 80 divisors (see below), whose sum is σ = 277912800. Its totient is φ = 24797664.

The previous prime is 98172799. The next prime is 98172817. The reversal of 98172810 is 1827189.

It is a super-2 number, since 2×98172810² = 19275801246592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98172817) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12201 + ... + 18579.

It is an arithmetic number, because the mean of its divisors is an integer number (3473910).

Almost surely, 2^98172810 is an apocalyptic number.

98172810 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 98172810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138956400).

98172810 is an abundant number, since it is smaller than the sum of its proper divisors (179739990).

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

98172810 is a wasteful number, since it uses less digits than its factorization.

98172810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417 (or 6408 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 98172810 is about 9908.2193152958. The cubic root of 98172810 is about 461.3144665000.

Adding to 98172810 its reverse (1827189), we get a palindrome (99999999).

The spelling of 98172810 in words is "ninety-eight million, one hundred seventy-two thousand, eight hundred ten".