69998 has 8 divisors (see below), whose sum is σ = 108480. Its totient is φ = 33840.

The previous prime is 69997. The next prime is 70001. The reversal of 69998 is 89996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69991) 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, 503 + ... + 626.

It is an arithmetic number, because the mean of its divisors is an integer number (13560).

2⁶⁹⁹⁹⁸ is an apocalyptic number.

69998 is a deficient number, since it is larger than the sum of its proper divisors (38482).

69998 is a wasteful number, since it uses less digits than its factorization.

69998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its digits is 34992, while the sum is 41.

The square root of 69998 is about 264.5713514347. The cubic root of 69998 is about 41.2124604910.

It can be divided in two parts, 6999 and 8, that added together give a palindrome (7007).

The spelling of 69998 in words is "sixty-nine thousand, nine hundred ninety-eight".