77283396 has 30 divisors (see below), whose sum is σ = 202034910. Its totient is φ = 25761024.

The previous prime is 77283383. The next prime is 77283397. The reversal of 77283396 is 69338277.

It is a happy number.

77283396 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in only one way, i.e., 66194496 + 11088900 = 8136^2 + 3330^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (77283397) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 118941 + ... + 119588.

It is an arithmetic number, because the mean of its divisors is an integer number (6734497).

Almost surely, 2^77283396 is an apocalyptic number.

It is an amenable number.

77283396 is an abundant number, since it is smaller than the sum of its proper divisors (124751514).

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

77283396 is a wasteful number, since it uses less digits than its factorization.

77283396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238545 (or 238534 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 77283396 is about 8791.0975424005. The cubic root of 77283396 is about 425.9533771631.

The spelling of 77283396 in words is "seventy-seven million, two hundred eighty-three thousand, three hundred ninety-six".