78133608 has 48 divisors (see below), whose sum is σ = 241843680. Its totient is φ = 22323744.

The previous prime is 78133589. The next prime is 78133613. The reversal of 78133608 is 80633187.

It is a super-2 number, since 2×78133608² = 12209721398195328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 77010 + ... + 78017.

It is an arithmetic number, because the mean of its divisors is an integer number (5038410).

Almost surely, 2^78133608 is an apocalyptic number.

It is an amenable number.

78133608 is an abundant number, since it is smaller than the sum of its proper divisors (163710072).

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

78133608 is a wasteful number, since it uses less digits than its factorization.

78133608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155046 (or 155039 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 78133608 is about 8839.3216934333. The cubic root of 78133608 is about 427.5096868637.

The spelling of 78133608 in words is "seventy-eight million, one hundred thirty-three thousand, six hundred eight".