78350776 has 16 divisors (see below), whose sum is σ = 167894640. Its totient is φ = 33578880.

The previous prime is 78350771. The next prime is 78350777. The reversal of 78350776 is 67705387.

It is a super-2 number, since 2×78350776² = 12277688199604352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78350771) 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 3 ways as a sum of consecutive naturals, for example, 699505 + ... + 699616.

It is an arithmetic number, because the mean of its divisors is an integer number (10493415).

Almost surely, 2^78350776 is an apocalyptic number.

It is an amenable number.

78350776 is an abundant number, since it is smaller than the sum of its proper divisors (89543864).

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

78350776 is a wasteful number, since it uses less digits than its factorization.

78350776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399134 (or 1399130 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 78350776 is about 8851.5973699666. The cubic root of 78350776 is about 427.9054002354.

The spelling of 78350776 in words is "seventy-eight million, three hundred fifty thousand, seven hundred seventy-six".