67479980 has 24 divisors (see below), whose sum is σ = 141932112. Its totient is φ = 26949312.

The previous prime is 67479967. The next prime is 67480009. The reversal of 67479980 is 8997476.

It is a happy number.

It is a super-3 number, since 3×67479980³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12359 + ... + 16961.

It is an arithmetic number, because the mean of its divisors is an integer number (5913838).

Almost surely, 2^67479980 is an apocalyptic number.

It is an amenable number.

67479980 is an abundant number, since it is smaller than the sum of its proper divisors (74452132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67479980 is a wasteful number, since it uses less digits than its factorization.

67479980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345 (or 5343 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 67479980 is about 8214.6198938235. The cubic root of 67479980 is about 407.1223847010.

The spelling of 67479980 in words is "sixty-seven million, four hundred seventy-nine thousand, nine hundred eighty".