98661697 has 4 divisors (see below), whose sum is σ = 102951360. Its totient is φ = 94372036.

The previous prime is 98661679. The next prime is 98661709. The reversal of 98661697 is 79616689.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 98661697 - 2¹⁹ = 98137409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98661637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144797 + ... + 2144842.

It is an arithmetic number, because the mean of its divisors is an integer number (25737840).

Almost surely, 2^98661697 is an apocalyptic number.

It is an amenable number.

98661697 is a deficient number, since it is larger than the sum of its proper divisors (4289663).

98661697 is a wasteful number, since it uses less digits than its factorization.

98661697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289662.

The product of its digits is 979776, while the sum is 52.

The square root of 98661697 is about 9932.8594573768. The cubic root of 98661697 is about 462.0789595996.

The spelling of 98661697 in words is "ninety-eight million, six hundred sixty-one thousand, six hundred ninety-seven".