78750383 has 4 divisors (see below), whose sum is σ = 82895160. Its totient is φ = 74605608.

The previous prime is 78750377. The next prime is 78750389. The reversal of 78750383 is 38305787.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (78750377) and next prime (78750389).

It is a cyclic number.

It is not a de Polignac number, because 78750383 - 2²⁴ = 61973167 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 78750383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78750389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072360 + ... + 2072397.

It is an arithmetic number, because the mean of its divisors is an integer number (20723790).

Almost surely, 2^78750383 is an apocalyptic number.

78750383 is a deficient number, since it is larger than the sum of its proper divisors (4144777).

78750383 is a wasteful number, since it uses less digits than its factorization.

78750383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144776.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 78750383 is about 8874.1412542285. The cubic root of 78750383 is about 428.6316389956.

The spelling of 78750383 in words is "seventy-eight million, seven hundred fifty thousand, three hundred eighty-three".