78673435 has 4 divisors (see below), whose sum is σ = 94408128. Its totient is φ = 62938744.

The previous prime is 78673429. The next prime is 78673453. The reversal of 78673435 is 53437687.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53437687 = 2467 ⋅21661.

It is a cyclic number.

It is not a de Polignac number, because 78673435 - 2⁵ = 78673403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78673391 and 78673400.

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 3 ways as a sum of consecutive naturals, for example, 7867339 + ... + 7867348.

It is an arithmetic number, because the mean of its divisors is an integer number (23602032).

Almost surely, 2^78673435 is an apocalyptic number.

78673435 is a deficient number, since it is larger than the sum of its proper divisors (15734693).

78673435 is a wasteful number, since it uses less digits than its factorization.

78673435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15734692.

The product of its digits is 423360, while the sum is 43.

The square root of 78673435 is about 8869.8046765416. The cubic root of 78673435 is about 428.4919863597.

It can be divided in two parts, 786734 and 35, that added together give a square (786769 = 887²).

The spelling of 78673435 in words is "seventy-eight million, six hundred seventy-three thousand, four hundred thirty-five".