78950543 has 16 divisors (see below), whose sum is σ = 92897280. Its totient is φ = 65688000.

The previous prime is 78950519. The next prime is 78950579. The reversal of 78950543 is 34505987.

It is not a de Polignac number, because 78950543 - 2¹² = 78946447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 78950543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78950593) 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 15 ways as a sum of consecutive naturals, for example, 68018 + ... + 69168.

It is an arithmetic number, because the mean of its divisors is an integer number (5806080).

Almost surely, 2^78950543 is an apocalyptic number.

78950543 is a deficient number, since it is larger than the sum of its proper divisors (13946737).

78950543 is a wasteful number, since it uses less digits than its factorization.

78950543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 78950543 is about 8885.4118081268. The cubic root of 78950543 is about 428.9944830424.

The spelling of 78950543 in words is "seventy-eight million, nine hundred fifty thousand, five hundred forty-three".