77230722 has 8 divisors (see below), whose sum is σ = 154461456. Its totient is φ = 25743572.

The previous prime is 77230717. The next prime is 77230759. The reversal of 77230722 is 22703277.

It is a sphenic number, since it is the product of 3 distinct primes.

77230722 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 77230722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6435888 + ... + 6435899.

It is an arithmetic number, because the mean of its divisors is an integer number (19307682).

Almost surely, 2^77230722 is an apocalyptic number.

77230722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77230722 is a wasteful number, since it uses less digits than its factorization.

77230722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12871792.

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 77230722 is about 8788.1011600914. The cubic root of 77230722 is about 425.8565829025.

Adding to 77230722 its reverse (22703277), we get a palindrome (99933999).

The spelling of 77230722 in words is "seventy-seven million, two hundred thirty thousand, seven hundred twenty-two".