78922411 has 4 divisors (see below), whose sum is σ = 79688752. Its totient is φ = 78156072.

The previous prime is 78922399. The next prime is 78922423. The reversal of 78922411 is 11422987.

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

It is an interprime number because it is at equal distance from previous prime (78922399) and next prime (78922423).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78922411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78922111) 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, 383016 + ... + 383221.

It is an arithmetic number, because the mean of its divisors is an integer number (19922188).

Almost surely, 2^78922411 is an apocalyptic number.

78922411 is a deficient number, since it is larger than the sum of its proper divisors (766341).

78922411 is a wasteful number, since it uses less digits than its factorization.

78922411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766340.

The product of its digits is 8064, while the sum is 34.

The square root of 78922411 is about 8883.8286228405. The cubic root of 78922411 is about 428.9435232641.

The spelling of 78922411 in words is "seventy-eight million, nine hundred twenty-two thousand, four hundred eleven".