78300003 has 4 divisors (see below), whose sum is σ = 104400008. Its totient is φ = 52200000.

The previous prime is 78299999. The next prime is 78300023. The reversal of 78300003 is 30000387.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 78300003 - 2² = 78299999 is a prime.

It is a super-2 number, since 2×78300003² = 12261780939600018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78300023) 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 3 ways as a sum of consecutive naturals, for example, 13049998 + ... + 13050003.

It is an arithmetic number, because the mean of its divisors is an integer number (26100002).

Almost surely, 2^78300003 is an apocalyptic number.

78300003 is a deficient number, since it is larger than the sum of its proper divisors (26100005).

78300003 is a wasteful number, since it uses less digits than its factorization.

78300003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26100004.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 78300003 is about 8848.7288917674. The cubic root of 78300003 is about 427.8129496065.

The spelling of 78300003 in words is "seventy-eight million, three hundred thousand, three".