98406505 has 4 divisors (see below), whose sum is σ = 118087812. Its totient is φ = 78725200.

The previous prime is 98406487. The next prime is 98406527. The reversal of 98406505 is 50560489.

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 49294441 + 49112064 = 7021^2 + 7008^2 .

It is not a de Polignac number, because 98406505 - 2¹¹ = 98404457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9840646 + ... + 9840655.

It is an arithmetic number, because the mean of its divisors is an integer number (29521953).

Almost surely, 2^98406505 is an apocalyptic number.

It is an amenable number.

98406505 is a deficient number, since it is larger than the sum of its proper divisors (19681307).

98406505 is a wasteful number, since it uses less digits than its factorization.

98406505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19681306.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 98406505 is about 9920.0052923373. The cubic root of 98406505 is about 461.6802210452.

The spelling of 98406505 in words is "ninety-eight million, four hundred six thousand, five hundred five".