78878050 has 12 divisors (see below), whose sum is σ = 146713266. Its totient is φ = 31551200.

The previous prime is 78878047. The next prime is 78878053. The reversal of 78878050 is 5087887.

It is an interprime number because it is at equal distance from previous prime (78878047) and next prime (78878053).

It can be written as a sum of positive squares in 3 ways, for example, as 77211369 + 1666681 = 8787^2 + 1291^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78877988 and 78878006.

It is not an unprimeable number, because it can be changed into a prime (78878053) 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 5 ways as a sum of consecutive naturals, for example, 788731 + ... + 788830.

Almost surely, 2^78878050 is an apocalyptic number.

78878050 is a deficient number, since it is larger than the sum of its proper divisors (67835216).

78878050 is a wasteful number, since it uses less digits than its factorization.

78878050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577573 (or 1577568 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 78878050 is about 8881.3315443125. The cubic root of 78878050 is about 428.8631408155.

The spelling of 78878050 in words is "seventy-eight million, eight hundred seventy-eight thousand, fifty".