98217679 has 16 divisors (see below), whose sum is σ = 113948928. Its totient is φ = 82922112.

The previous prime is 98217677. The next prime is 98217689. The reversal of 98217679 is 97671289.

It is a happy number.

It is not a de Polignac number, because 98217679 - 2¹ = 98217677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98217677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179284 + ... + 179830.

It is an arithmetic number, because the mean of its divisors is an integer number (7121808).

Almost surely, 2^98217679 is an apocalyptic number.

98217679 is a deficient number, since it is larger than the sum of its proper divisors (15731249).

98217679 is a wasteful number, since it uses less digits than its factorization.

98217679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its digits is 381024, while the sum is 49.

The square root of 98217679 is about 9910.4832879129. The cubic root of 98217679 is about 461.3847356720.

It can be divided in two parts, 982 and 17679, that multiplied together give a triangular number (17360778 = T₅₈₉₂).

The spelling of 98217679 in words is "ninety-eight million, two hundred seventeen thousand, six hundred seventy-nine".