78572193 has 8 divisors (see below), whose sum is σ = 119729088. Its totient is φ = 44898384.

The previous prime is 78572189. The next prime is 78572213. The reversal of 78572193 is 39127587.

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

It is not a de Polignac number, because 78572193 - 2² = 78572189 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78572183) 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, 1870746 + ... + 1870787.

It is an arithmetic number, because the mean of its divisors is an integer number (14966136).

Almost surely, 2^78572193 is an apocalyptic number.

It is an amenable number.

78572193 is a deficient number, since it is larger than the sum of its proper divisors (41156895).

78572193 is a wasteful number, since it uses less digits than its factorization.

78572193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741543.

The product of its digits is 105840, while the sum is 42.

The square root of 78572193 is about 8864.0957237611. The cubic root of 78572193 is about 428.3081038432.

The spelling of 78572193 in words is "seventy-eight million, five hundred seventy-two thousand, one hundred ninety-three".