78300345 has 16 divisors (see below), whose sum is σ = 127645632. Its totient is φ = 40971840.

The previous prime is 78300323. The next prime is 78300359. The reversal of 78300345 is 54300387.

It is not a de Polignac number, because 78300345 - 2⁶ = 78300281 is a prime.

It is a super-2 number, since 2×78300345² = 12261888054238050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48451 + ... + 50040.

It is an arithmetic number, because the mean of its divisors is an integer number (7977852).

Almost surely, 2^78300345 is an apocalyptic number.

It is an amenable number.

78300345 is a deficient number, since it is larger than the sum of its proper divisors (49345287).

78300345 is a wasteful number, since it uses less digits than its factorization.

78300345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98552.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 78300345 is about 8848.7482165558. The cubic root of 78300345 is about 427.8135724750.

The spelling of 78300345 in words is "seventy-eight million, three hundred thousand, three hundred forty-five".