78019201 has 8 divisors (see below), whose sum is σ = 85809024. Its totient is φ = 70484880.

The previous prime is 78019177. The next prime is 78019217. The reversal of 78019201 is 10291087.

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 78019201 - 2⁵ = 78019169 is a prime.

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 78019201.

It is not an unprimeable number, because it can be changed into a prime (78019241) 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, 63235 + ... + 64456.

It is an arithmetic number, because the mean of its divisors is an integer number (10726128).

Almost surely, 2^78019201 is an apocalyptic number.

It is an amenable number.

78019201 is a deficient number, since it is larger than the sum of its proper divisors (7789823).

78019201 is a wasteful number, since it uses less digits than its factorization.

78019201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127751.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 78019201 is about 8832.8478420043. The cubic root of 78019201 is about 427.3009248315.

The spelling of 78019201 in words is "seventy-eight million, nineteen thousand, two hundred one".