78705496 has 8 divisors (see below), whose sum is σ = 147572820. Its totient is φ = 39352744.

The previous prime is 78705491. The next prime is 78705533. The reversal of 78705496 is 69450787.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78705491) 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 as a sum of consecutive naturals, namely, 4919086 + ... + 4919101.

Almost surely, 2^78705496 is an apocalyptic number.

It is an amenable number.

78705496 is a deficient number, since it is larger than the sum of its proper divisors (68867324).

78705496 is a wasteful number, since it uses less digits than its factorization.

78705496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838193 (or 9838189 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 78705496 is about 8871.6118039508. The cubic root of 78705496 is about 428.5501848094.

It can be divided in two parts, 7870 and 5496, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 78705496 in words is "seventy-eight million, seven hundred five thousand, four hundred ninety-six".