78237383 has 16 divisors (see below), whose sum is σ = 99659520. Its totient is φ = 59792256.

The previous prime is 78237373. The next prime is 78237391. The reversal of 78237383 is 38373287.

It is a cyclic number.

It is not a de Polignac number, because 78237383 - 2¹⁸ = 77975239 is a prime.

It is a super-2 number, since 2×78237383² = 12242176197377378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 78237383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78237353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15041 + ... + 19562.

It is an arithmetic number, because the mean of its divisors is an integer number (6228720).

Almost surely, 2^78237383 is an apocalyptic number.

78237383 is a deficient number, since it is larger than the sum of its proper divisors (21422137).

78237383 is a wasteful number, since it uses less digits than its factorization.

78237383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34646.

The product of its digits is 169344, while the sum is 41.

The square root of 78237383 is about 8845.1898227229. The cubic root of 78237383 is about 427.6988721664.

The spelling of 78237383 in words is "seventy-eight million, two hundred thirty-seven thousand, three hundred eighty-three".