78303608 has 8 divisors (see below), whose sum is σ = 146819280. Its totient is φ = 39151800.

The previous prime is 78303601. The next prime is 78303629. The reversal of 78303608 is 80630387.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×78303608² = 12262910051635328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78303601) 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 as a sum of consecutive naturals, namely, 4893968 + ... + 4893983.

It is an arithmetic number, because the mean of its divisors is an integer number (18352410).

Almost surely, 2^78303608 is an apocalyptic number.

It is an amenable number.

78303608 is a deficient number, since it is larger than the sum of its proper divisors (68515672).

78303608 is a wasteful number, since it uses less digits than its factorization.

78303608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9787957 (or 9787953 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 78303608 is about 8848.9325909965. The cubic root of 78303608 is about 427.8195151321.

The spelling of 78303608 in words is "seventy-eight million, three hundred three thousand, six hundred eight".