78830455 has 16 divisors (see below), whose sum is σ = 103413024. Its totient is φ = 57210880.

The previous prime is 78830447. The next prime is 78830459. The reversal of 78830455 is 55403887.

It is not a de Polignac number, because 78830455 - 2³ = 78830447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78830459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31407 + ... + 33823.

It is an arithmetic number, because the mean of its divisors is an integer number (6463314).

Almost surely, 2^78830455 is an apocalyptic number.

78830455 is a deficient number, since it is larger than the sum of its proper divisors (24582569).

78830455 is a wasteful number, since it uses less digits than its factorization.

78830455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 78830455 is about 8878.6516431269. The cubic root of 78830455 is about 428.7768648150.

The spelling of 78830455 in words is "seventy-eight million, eight hundred thirty thousand, four hundred fifty-five".