77416422 has 16 divisors (see below), whose sum is σ = 154923840. Its totient is φ = 25790312.

The previous prime is 77416421. The next prime is 77416429. The reversal of 77416422 is 22461477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77416421) 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, 12973 + ... + 17975.

It is an arithmetic number, because the mean of its divisors is an integer number (9682740).

Almost surely, 2^77416422 is an apocalyptic number.

77416422 is an abundant number, since it is smaller than the sum of its proper divisors (77507418).

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

77416422 is a wasteful number, since it uses less digits than its factorization.

77416422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7587.

The product of its digits is 18816, while the sum is 33.

The square root of 77416422 is about 8798.6602389227. The cubic root of 77416422 is about 426.1976314149.

Adding to 77416422 its reverse (22461477), we get a palindrome (99877899).

The spelling of 77416422 in words is "seventy-seven million, four hundred sixteen thousand, four hundred twenty-two".