98971667 has 4 divisors (see below), whose sum is σ = 99005616. Its totient is φ = 98937720.

The previous prime is 98971601. The next prime is 98971699. The reversal of 98971667 is 76617989.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76617989 = 7 ⋅10945427.

It is a cyclic number.

It is not a de Polignac number, because 98971667 - 2²⁴ = 82194451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98971267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12143 + ... + 18584.

It is an arithmetic number, because the mean of its divisors is an integer number (24751404).

Almost surely, 2^98971667 is an apocalyptic number.

98971667 is a deficient number, since it is larger than the sum of its proper divisors (33949).

98971667 is a wasteful number, since it uses less digits than its factorization.

98971667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33948.

The product of its digits is 1143072, while the sum is 53.

The square root of 98971667 is about 9948.4504823616. The cubic root of 98971667 is about 462.5623652935.

The spelling of 98971667 in words is "ninety-eight million, nine hundred seventy-one thousand, six hundred sixty-seven".