78977050 has 12 divisors (see below), whose sum is σ = 146897406. Its totient is φ = 31590800.

The previous prime is 78977033. The next prime is 78977071. The reversal of 78977050 is 5077987.

It can be written as a sum of positive squares in 3 ways, for example, as 60512841 + 18464209 = 7779^2 + 4297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78976988 and 78977006.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 789721 + ... + 789820.

Almost surely, 2^78977050 is an apocalyptic number.

78977050 is a deficient number, since it is larger than the sum of its proper divisors (67920356).

78977050 is a wasteful number, since it uses less digits than its factorization.

78977050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579553 (or 1579548 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 78977050 is about 8886.9032851720. The cubic root of 78977050 is about 429.0424881350.

The spelling of 78977050 in words is "seventy-eight million, nine hundred seventy-seven thousand, fifty".