78375193 has 8 divisors (see below), whose sum is σ = 85664768. Its totient is φ = 71265744.

The previous prime is 78375169. The next prime is 78375203. The reversal of 78375193 is 39157387.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78375193 is a prime.

It is a super-2 number, since 2×78375193² = 12285341755574498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78375163) 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, 44121 + ... + 45862.

It is an arithmetic number, because the mean of its divisors is an integer number (10708096).

Almost surely, 2^78375193 is an apocalyptic number.

It is an amenable number.

78375193 is a deficient number, since it is larger than the sum of its proper divisors (7289575).

78375193 is a wasteful number, since it uses less digits than its factorization.

78375193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90063.

The product of its digits is 158760, while the sum is 43.

The square root of 78375193 is about 8852.9765051083. The cubic root of 78375193 is about 427.9498460024.

The spelling of 78375193 in words is "seventy-eight million, three hundred seventy-five thousand, one hundred ninety-three".