78303536 has 20 divisors (see below), whose sum is σ = 153636000. Its totient is φ = 38655552.

The previous prime is 78303527. The next prime is 78303539. The reversal of 78303536 is 63530387.

It is a super-2 number, since 2×78303536² = 12262887500206592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78303496 and 78303505.

It is not an unprimeable number, because it can be changed into a prime (78303539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29711 + ... + 32238.

It is an arithmetic number, because the mean of its divisors is an integer number (7681800).

Almost surely, 2^78303536 is an apocalyptic number.

It is an amenable number.

78303536 is a deficient number, since it is larger than the sum of its proper divisors (75332464).

78303536 is a wasteful number, since it uses less digits than its factorization.

78303536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62036 (or 62030 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 78303536 is about 8848.9285227083. The cubic root of 78303536 is about 427.8193840056.

The spelling of 78303536 in words is "seventy-eight million, three hundred three thousand, five hundred thirty-six".