78955244 has 24 divisors (see below), whose sum is σ = 140790720. Its totient is φ = 38736144.

The previous prime is 78955243. The next prime is 78955369. The reversal of 78955244 is 44255987.

It is a happy number.

It is a Smith number, since the sum of its digits (44) 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 = 78955195 and 78955204.

It is not an unprimeable number, because it can be changed into a prime (78955243) 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, 53387 + ... + 54845.

It is an arithmetic number, because the mean of its divisors is an integer number (5866280).

Almost surely, 2^78955244 is an apocalyptic number.

It is an amenable number.

78955244 is a deficient number, since it is larger than the sum of its proper divisors (61835476).

78955244 is a wasteful number, since it uses less digits than its factorization.

78955244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1707 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 78955244 is about 8885.6763389176. The cubic root of 78955244 is about 429.0029974995.

The spelling of 78955244 in words is "seventy-eight million, nine hundred fifty-five thousand, two hundred forty-four".