77427346 has 16 divisors (see below), whose sum is σ = 118272960. Its totient is φ = 38007760.

The previous prime is 77427341. The next prime is 77427353. The reversal of 77427346 is 64372477.

It is a junction number, because it is equal to n+sod(n) for n = 77427299 and 77427308.

It is not an unprimeable number, because it can be changed into a prime (77427341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37185 + ... + 39211.

It is an arithmetic number, because the mean of its divisors is an integer number (7392060).

Almost surely, 2^77427346 is an apocalyptic number.

77427346 is a deficient number, since it is larger than the sum of its proper divisors (40845614).

77427346 is a wasteful number, since it uses less digits than its factorization.

77427346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369.

The product of its digits is 197568, while the sum is 40.

The square root of 77427346 is about 8799.2809933539. The cubic root of 77427346 is about 426.2176769635.

The spelling of 77427346 in words is "seventy-seven million, four hundred twenty-seven thousand, three hundred forty-six".