78114269 has 4 divisors (see below), whose sum is σ = 82709244. Its totient is φ = 73519296.

The previous prime is 78114259. The next prime is 78114287. The reversal of 78114269 is 96241187.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45738169 + 32376100 = 6763^2 + 5690^2 .

It is a cyclic number.

It is not a de Polignac number, because 78114269 - 2⁸ = 78114013 is a prime.

It is a super-2 number, since 2×78114269² = 12203678042808722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78114259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2297462 + ... + 2297495.

It is an arithmetic number, because the mean of its divisors is an integer number (20677311).

Almost surely, 2^78114269 is an apocalyptic number.

It is an amenable number.

78114269 is a deficient number, since it is larger than the sum of its proper divisors (4594975).

78114269 is a wasteful number, since it uses less digits than its factorization.

78114269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594974.

The product of its digits is 24192, while the sum is 38.

The square root of 78114269 is about 8838.2277069557. The cubic root of 78114269 is about 427.4744127043.

The spelling of 78114269 in words is "seventy-eight million, one hundred fourteen thousand, two hundred sixty-nine".