67899998 has 8 divisors (see below), whose sum is σ = 103284720. Its totient is φ = 33471760.

The previous prime is 67899983. The next prime is 67900003. The reversal of 67899998 is 89999876.

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

It is a super-2 number, since 2×67899998² = 9220819456800008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238943 + ... + 239226.

It is an arithmetic number, because the mean of its divisors is an integer number (12910590).

Almost surely, 2^67899998 is an apocalyptic number.

67899998 is a deficient number, since it is larger than the sum of its proper divisors (35384722).

67899998 is a wasteful number, since it uses less digits than its factorization.

67899998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478242.

The product of its digits is 17635968, while the sum is 65.

The square root of 67899998 is about 8240.1455084240. The cubic root of 67899998 is about 407.9653268945.

The spelling of 67899998 in words is "sixty-seven million, eight hundred ninety-nine thousand, nine hundred ninety-eight".