67478998 has 8 divisors (see below), whose sum is σ = 104708880. Its totient is φ = 32576040.

The previous prime is 67478977. The next prime is 67479007. The reversal of 67478998 is 89987476.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (58), and also a Moran number because the ratio is a prime number: 1163431 = 67478998 / (6 + 7 + 4 + 7 + 8 + 9 + 9 + 8).

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, 581658 + ... + 581773.

It is an arithmetic number, because the mean of its divisors is an integer number (13088610).

Almost surely, 2^67478998 is an apocalyptic number.

67478998 is a deficient number, since it is larger than the sum of its proper divisors (37229882).

67478998 is a wasteful number, since it uses less digits than its factorization.

67478998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163462.

The product of its digits is 6096384, while the sum is 58.

The square root of 67478998 is about 8214.5601221246. The cubic root of 67478998 is about 407.1204098134.

The spelling of 67478998 in words is "sixty-seven million, four hundred seventy-eight thousand, nine hundred ninety-eight".