91825098 has 16 divisors (see below), whose sum is σ = 184331136. Its totient is φ = 30494880.

The previous prime is 91825093. The next prime is 91825099. The reversal of 91825098 is 89052819.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (91825091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26611 + ... + 29862.

It is an arithmetic number, because the mean of its divisors is an integer number (11520696).

Almost surely, 2^91825098 is an apocalyptic number.

91825098 is an abundant number, since it is smaller than the sum of its proper divisors (92506038).

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

91825098 is a wasteful number, since it uses less digits than its factorization.

91825098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56749.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 91825098 is about 9582.5413121990. The cubic root of 91825098 is about 451.1494859292.

The spelling of 91825098 in words is "ninety-one million, eight hundred twenty-five thousand, ninety-eight".