78286353 has 16 divisors (see below), whose sum is σ = 106655616. Its totient is φ = 51059840.

The previous prime is 78286337. The next prime is 78286357. The reversal of 78286353 is 35368287.

It is a cyclic number.

It is not a de Polignac number, because 78286353 - 2⁴ = 78286337 is a prime.

It is a super-2 number, since 2×78286353² = 12257506132081218, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78286357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102493 + ... + 103253.

It is an arithmetic number, because the mean of its divisors is an integer number (6665976).

Almost surely, 2^78286353 is an apocalyptic number.

It is an amenable number.

78286353 is a deficient number, since it is larger than the sum of its proper divisors (28369263).

78286353 is a wasteful number, since it uses less digits than its factorization.

78286353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464.

The product of its digits is 241920, while the sum is 42.

The square root of 78286353 is about 8847.9575609290. The cubic root of 78286353 is about 427.7880880232.

The spelling of 78286353 in words is "seventy-eight million, two hundred eighty-six thousand, three hundred fifty-three".