78277050 has 96 divisors (see below), whose sum is σ = 225164160. Its totient is φ = 19958400.

The previous prime is 78277039. The next prime is 78277099. The reversal of 78277050 is 5077287.

It is a super-2 number, since 2×78277050² = 12254593113405000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 78276996 and 78277014.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29790 + ... + 32310.

It is an arithmetic number, because the mean of its divisors is an integer number (2345460).

Almost surely, 2^78277050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78277050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112582080).

78277050 is an abundant number, since it is smaller than the sum of its proper divisors (146887110).

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

78277050 is a wasteful number, since it uses less digits than its factorization.

78277050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565 (or 2554 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 78277050 is about 8847.4318307631. The cubic root of 78277050 is about 427.7711422420.

The spelling of 78277050 in words is "seventy-eight million, two hundred seventy-seven thousand, fifty".