78770050 has 12 divisors (see below), whose sum is σ = 146512386. Its totient is φ = 31508000.

The previous prime is 78770047. The next prime is 78770051. The reversal of 78770050 is 5007787.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 70913241 + 7856809 = 8421^2 + 2803^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78769988 and 78770015.

It is not an unprimeable number, because it can be changed into a prime (78770051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 787651 + ... + 787750.

Almost surely, 2^78770050 is an apocalyptic number.

78770050 is a deficient number, since it is larger than the sum of its proper divisors (67742336).

78770050 is a wasteful number, since it uses less digits than its factorization.

78770050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575413 (or 1575408 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 78770050 is about 8875.2492922734. The cubic root of 78770050 is about 428.6673179619.

The spelling of 78770050 in words is "seventy-eight million, seven hundred seventy thousand, fifty".