78133607 has 8 divisors (see below), whose sum is σ = 80619840. Its totient is φ = 75684960.

The previous prime is 78133589. The next prime is 78133613. The reversal of 78133607 is 70633187.

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

It is a cyclic number.

It is not a de Polignac number, because 78133607 - 2²² = 73939303 is a prime.

It is a super-2 number, since 2×78133607² = 12209721085660898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78133687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5144 + ... + 13517.

It is an arithmetic number, because the mean of its divisors is an integer number (10077480).

Almost surely, 2^78133607 is an apocalyptic number.

78133607 is a deficient number, since it is larger than the sum of its proper divisors (2486233).

78133607 is a wasteful number, since it uses less digits than its factorization.

78133607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18793.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 78133607 is about 8839.3216368678. The cubic root of 78133607 is about 427.5096850399.

The spelling of 78133607 in words is "seventy-eight million, one hundred thirty-three thousand, six hundred seven".