67899 has 8 divisors (see below), whose sum is σ = 97552. Its totient is φ = 41760.

The previous prime is 67891. The next prime is 67901. The reversal of 67899 is 99876.

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

It is not a de Polignac number, because 67899 - 2³ = 67891 is a prime.

It is a super-2 number, since 2×67899² = 9220548402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1741 = 67899 / (6 + 7 + 8 + 9 + 9).

67899 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832 + ... + 909.

It is an arithmetic number, because the mean of its divisors is an integer number (12194).

2⁶⁷⁸⁹⁹ is an apocalyptic number.

67899 is a deficient number, since it is larger than the sum of its proper divisors (29653).

67899 is a wasteful number, since it uses less digits than its factorization.

67899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757.

The product of its digits is 27216, while the sum is 39.

The square root of 67899 is about 260.5743655850. The cubic root of 67899 is about 40.7963328115.

It can be divided in two parts, 678 and 99, that added together give a palindrome (777).

The spelling of 67899 in words is "sixty-seven thousand, eight hundred ninety-nine".