78350772 has 24 divisors (see below), whose sum is σ = 185395392. Its totient is φ = 25748800.

The previous prime is 78350771. The next prime is 78350777. The reversal of 78350772 is 27705387.

It is a super-2 number, since 2×78350772² = 12277686945991968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78350772.

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 7 ways as a sum of consecutive naturals, for example, 45129 + ... + 46832.

It is an arithmetic number, because the mean of its divisors is an integer number (7724808).

Almost surely, 2^78350772 is an apocalyptic number.

It is an amenable number.

78350772 is an abundant number, since it is smaller than the sum of its proper divisors (107044620).

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

78350772 is a wasteful number, since it uses less digits than its factorization.

78350772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92039 (or 92037 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 78350772 is about 8851.5971440187. The cubic root of 78350772 is about 427.9053929536.

The spelling of 78350772 in words is "seventy-eight million, three hundred fifty thousand, seven hundred seventy-two".