98401645 has 4 divisors (see below), whose sum is σ = 118081980. Its totient is φ = 78721312.

The previous prime is 98401637. The next prime is 98401651. The reversal of 98401645 is 54610489.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33212169 + 65189476 = 5763^2 + 8074^2 .

It is a cyclic number.

It is not a de Polignac number, because 98401645 - 2³ = 98401637 is a prime.

It is a super-3 number, since 3×98401645³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9840160 + ... + 9840169.

It is an arithmetic number, because the mean of its divisors is an integer number (29520495).

Almost surely, 2^98401645 is an apocalyptic number.

It is an amenable number.

98401645 is a deficient number, since it is larger than the sum of its proper divisors (19680335).

98401645 is a wasteful number, since it uses less digits than its factorization.

98401645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19680334.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 98401645 is about 9919.7603297660. The cubic root of 98401645 is about 461.6726205896.

The spelling of 98401645 in words is "ninety-eight million, four hundred one thousand, six hundred forty-five".