78433269 has 8 divisors (see below), whose sum is σ = 106551072. Its totient is φ = 51302160.

The previous prime is 78433261. The next prime is 78433301. The reversal of 78433269 is 96233487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78433269 - 2³ = 78433261 is a prime.

It is a super-2 number, since 2×78433269² = 12303555372052722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78433269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78433261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246487 + ... + 246804.

It is an arithmetic number, because the mean of its divisors is an integer number (13318884).

Almost surely, 2^78433269 is an apocalyptic number.

It is an amenable number.

78433269 is a deficient number, since it is larger than the sum of its proper divisors (28117803).

78433269 is a wasteful number, since it uses less digits than its factorization.

78433269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493347.

The product of its digits is 217728, while the sum is 42.

The square root of 78433269 is about 8856.2559244864. The cubic root of 78433269 is about 428.0555234836.

The spelling of 78433269 in words is "seventy-eight million, four hundred thirty-three thousand, two hundred sixty-nine".