78790127 has 16 divisors (see below), whose sum is σ = 88128768. Its totient is φ = 69949440.

The previous prime is 78790123. The next prime is 78790133. The reversal of 78790127 is 72109787.

It is a cyclic number.

It is not a de Polignac number, because 78790127 - 2² = 78790123 is a prime.

It is a super-2 number, since 2×78790127² = 12415768225352258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78790123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77273 + ... + 78285.

It is an arithmetic number, because the mean of its divisors is an integer number (5508048).

Almost surely, 2^78790127 is an apocalyptic number.

78790127 is a deficient number, since it is larger than the sum of its proper divisors (9338641).

78790127 is a wasteful number, since it uses less digits than its factorization.

78790127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250.

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 78790127 is about 8876.3802870314. The cubic root of 78790127 is about 428.7037346061.

The spelling of 78790127 in words is "seventy-eight million, seven hundred ninety thousand, one hundred twenty-seven".