77322427 has 16 divisors (see below), whose sum is σ = 95640832. Its totient is φ = 60873120.

The previous prime is 77322361. The next prime is 77322431. The reversal of 77322427 is 72422377.

It is not a de Polignac number, because 77322427 - 2¹¹ = 77320379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77322392 and 77322401.

It is not an unprimeable number, because it can be changed into a prime (77322467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17188 + ... + 21214.

It is an arithmetic number, because the mean of its divisors is an integer number (5977552).

Almost surely, 2^77322427 is an apocalyptic number.

77322427 is a deficient number, since it is larger than the sum of its proper divisors (18318405).

77322427 is a wasteful number, since it uses less digits than its factorization.

77322427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258.

The product of its digits is 32928, while the sum is 34.

The square root of 77322427 is about 8793.3171784032. The cubic root of 77322427 is about 426.0250725470.

The spelling of 77322427 in words is "seventy-seven million, three hundred twenty-two thousand, four hundred twenty-seven".