77650122 has 32 divisors (see below), whose sum is σ = 169827840. Its totient is φ = 23473520.

The previous prime is 77650091. The next prime is 77650129. The reversal of 77650122 is 22105677.

It is a super-2 number, since 2×77650122² = 12059082893229768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77650122.

It is not an unprimeable number, because it can be changed into a prime (77650129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32029 + ... + 34367.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 2^77650122 is an apocalyptic number.

77650122 is an abundant number, since it is smaller than the sum of its proper divisors (92177718).

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

77650122 is a wasteful number, since it uses less digits than its factorization.

77650122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 77650122 is about 8811.9306624598. The cubic root of 77650122 is about 426.6260604531.

Adding to 77650122 its reverse (22105677), we get a palindrome (99755799).

The spelling of 77650122 in words is "seventy-seven million, six hundred fifty thousand, one hundred twenty-two".