78967073 has 4 divisors (see below), whose sum is σ = 82400448. Its totient is φ = 75533700.

The previous prime is 78967069. The next prime is 78967127. The reversal of 78967073 is 37076987.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37076987 = 691 ⋅53657.

It is a cyclic number.

It is not a de Polignac number, because 78967073 - 2² = 78967069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78967033) 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, 1716653 + ... + 1716698.

It is an arithmetic number, because the mean of its divisors is an integer number (20600112).

Almost surely, 2^78967073 is an apocalyptic number.

It is an amenable number.

78967073 is a deficient number, since it is larger than the sum of its proper divisors (3433375).

78967073 is a wasteful number, since it uses less digits than its factorization.

78967073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433374.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 78967073 is about 8886.3419358024. The cubic root of 78967073 is about 429.0244207042.

The spelling of 78967073 in words is "seventy-eight million, nine hundred sixty-seven thousand, seventy-three".