78718950 has 36 divisors (see below), whose sum is σ = 211492788. Its totient is φ = 20991600.

The previous prime is 78718933. The next prime is 78718973. The reversal of 78718950 is 5981787.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 78718896 and 78718905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 87016 + ... + 87915.

Almost surely, 2^78718950 is an apocalyptic number.

78718950 is an abundant number, since it is smaller than the sum of its proper divisors (132773838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78718950 is a wasteful number, since it uses less digits than its factorization.

78718950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174949 (or 174941 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 78718950 is about 8872.3700328604. The cubic root of 78718950 is about 428.5746023574.

The spelling of 78718950 in words is "seventy-eight million, seven hundred eighteen thousand, nine hundred fifty".