78300563 has 8 divisors (see below), whose sum is σ = 85503600. Its totient is φ = 71111680.

The previous prime is 78300559. The next prime is 78300571. The reversal of 78300563 is 36500387.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78300563 - 2² = 78300559 is a prime.

It is a super-2 number, since 2×78300563² = 12261956332233938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78300503) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10463 + ... + 16311.

It is an arithmetic number, because the mean of its divisors is an integer number (10687950).

Almost surely, 2^78300563 is an apocalyptic number.

78300563 is a deficient number, since it is larger than the sum of its proper divisors (7203037).

78300563 is a wasteful number, since it uses less digits than its factorization.

78300563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 78300563 is about 8848.7605346738. The cubic root of 78300563 is about 427.8139695072.

The spelling of 78300563 in words is "seventy-eight million, three hundred thousand, five hundred sixty-three".