78635046 has 32 divisors (see below), whose sum is σ = 183921408. Its totient is φ = 21944160.

The previous prime is 78635033. The next prime is 78635069. The reversal of 78635046 is 64053687.

It is a junction number, because it is equal to n+sod(n) for n = 78634995 and 78635013.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 19965 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (5747544).

Almost surely, 2^78635046 is an apocalyptic number.

78635046 is an abundant number, since it is smaller than the sum of its proper divisors (105286362).

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

78635046 is a wasteful number, since it uses less digits than its factorization.

78635046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43596.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 78635046 is about 8867.6403851306. The cubic root of 78635046 is about 428.4222802592.

The spelling of 78635046 in words is "seventy-eight million, six hundred thirty-five thousand, forty-six".