78059946 has 16 divisors (see below), whose sum is σ = 156302208. Its totient is φ = 25989600.

The previous prime is 78059911. The next prime is 78059951. The reversal of 78059946 is 64995087.

It is a junction number, because it is equal to n+sod(n) for n = 78059895 and 78059904.

It is an unprimeable number.

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, 1675 + ... + 12606.

It is an arithmetic number, because the mean of its divisors is an integer number (9768888).

Almost surely, 2^78059946 is an apocalyptic number.

78059946 is an abundant number, since it is smaller than the sum of its proper divisors (78242262).

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

78059946 is a wasteful number, since it uses less digits than its factorization.

78059946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15197.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 78059946 is about 8835.1539884713. The cubic root of 78059946 is about 427.3752968922.

It can be divided in two parts, 780 and 59946, that added together give a triangular number (60726 = T₃₄₈).

The spelling of 78059946 in words is "seventy-eight million, fifty-nine thousand, nine hundred forty-six".