77134422 has 16 divisors (see below), whose sum is σ = 154584000. Its totient is φ = 25658952.

The previous prime is 77134399. The next prime is 77134429. The reversal of 77134422 is 22443177.

It is a self number, because there is not a number n which added to its sum of digits gives 77134422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77134429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9888 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (9661500).

Almost surely, 2^77134422 is an apocalyptic number.

77134422 is an abundant number, since it is smaller than the sum of its proper divisors (77449578).

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

77134422 is a wasteful number, since it uses less digits than its factorization.

77134422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26267.

The product of its digits is 9408, while the sum is 30.

The square root of 77134422 is about 8782.6204517786. The cubic root of 77134422 is about 425.6795072303.

Adding to 77134422 its reverse (22443177), we get a palindrome (99577599).

The spelling of 77134422 in words is "seventy-seven million, one hundred thirty-four thousand, four hundred twenty-two".