78967319 has 8 divisors (see below), whose sum is σ = 82486560. Its totient is φ = 75501216.

The previous prime is 78967313. The next prime is 78967321. The reversal of 78967319 is 91376987.

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

It is a cyclic number.

It is not a de Polignac number, because 78967319 - 2¹² = 78963223 is a prime.

It is a super-2 number, since 2×78967319² = 12471674940095522, 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 (78967313) 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, 10232 + ... + 16205.

It is an arithmetic number, because the mean of its divisors is an integer number (10310820).

Almost surely, 2^78967319 is an apocalyptic number.

78967319 is a deficient number, since it is larger than the sum of its proper divisors (3519241).

78967319 is a wasteful number, since it uses less digits than its factorization.

78967319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26569.

The product of its digits is 571536, while the sum is 50.

The square root of 78967319 is about 8886.3557772576. The cubic root of 78967319 is about 429.0248662059.

The spelling of 78967319 in words is "seventy-eight million, nine hundred sixty-seven thousand, three hundred nineteen".