77998283 has 8 divisors (see below), whose sum is σ = 85243440. Its totient is φ = 70778880.

The previous prime is 77998279. The next prime is 77998289. The reversal of 77998283 is 38289977.

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

It is a cyclic number.

It is not a de Polignac number, because 77998283 - 2² = 77998279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77998289) 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, 203 + ... + 12491.

It is an arithmetic number, because the mean of its divisors is an integer number (10655430).

Almost surely, 2^77998283 is an apocalyptic number.

77998283 is a deficient number, since it is larger than the sum of its proper divisors (7245157).

77998283 is a wasteful number, since it uses less digits than its factorization.

77998283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877.

The product of its digits is 1524096, while the sum is 53.

The square root of 77998283 is about 8831.6636598095. The cubic root of 77998283 is about 427.2627330378.

The spelling of 77998283 in words is "seventy-seven million, nine hundred ninety-eight thousand, two hundred eighty-three".