78795011 has 4 divisors (see below), whose sum is σ = 78867552. Its totient is φ = 78722472.

The previous prime is 78794999. The next prime is 78795053. The reversal of 78795011 is 11059787.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78795011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78795091) 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, 34616 + ... + 36821.

It is an arithmetic number, because the mean of its divisors is an integer number (19716888).

Almost surely, 2^78795011 is an apocalyptic number.

78795011 is a deficient number, since it is larger than the sum of its proper divisors (72541).

78795011 is a wasteful number, since it uses less digits than its factorization.

78795011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72540.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 78795011 is about 8876.6553949109. The cubic root of 78795011 is about 428.7125925085.

The spelling of 78795011 in words is "seventy-eight million, seven hundred ninety-five thousand, eleven".