78039201 has 8 divisors (see below), whose sum is σ = 104448960. Its totient is φ = 51827792.

The previous prime is 78039127. The next prime is 78039217. The reversal of 78039201 is 10293087.

It is a happy number.

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 78039201 - 2⁹ = 78038689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78039271) by changing a digit.

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, 48666 + ... + 50243.

It is an arithmetic number, because the mean of its divisors is an integer number (13056120).

Almost surely, 2^78039201 is an apocalyptic number.

It is an amenable number.

78039201 is a deficient number, since it is larger than the sum of its proper divisors (26409759).

78039201 is a wasteful number, since it uses less digits than its factorization.

78039201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99175.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 78039201 is about 8833.9799071540. The cubic root of 78039201 is about 427.3374341704.

The spelling of 78039201 in words is "seventy-eight million, thirty-nine thousand, two hundred one".