78375329 has 8 divisors (see below), whose sum is σ = 82244160. Its totient is φ = 74544976.

The previous prime is 78375307. The next prime is 78375337. The reversal of 78375329 is 92357387.

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 78375329 - 2¹⁶ = 78309793 is a prime.

It is a super-2 number, since 2×78375329² = 12285384391716482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78375329.

It is not an unprimeable number, because it can be changed into a prime (78375359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402 + ... + 13635.

It is an arithmetic number, because the mean of its divisors is an integer number (10280520).

Almost surely, 2^78375329 is an apocalyptic number.

It is an amenable number.

78375329 is a deficient number, since it is larger than the sum of its proper divisors (3868831).

78375329 is a wasteful number, since it uses less digits than its factorization.

78375329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19239.

The product of its digits is 317520, while the sum is 44.

The square root of 78375329 is about 8852.9841861375. The cubic root of 78375329 is about 427.9500935346.

The spelling of 78375329 in words is "seventy-eight million, three hundred seventy-five thousand, three hundred twenty-nine".