77442283 has 2 divisors, whose sum is σ = 77442284. Its totient is φ = 77442282.

The previous prime is 77442257. The next prime is 77442289. The reversal of 77442283 is 38224477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77442283 - 2⁵ = 77442251 is a prime.

It is a super-3 number, since 3×77442283³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (77442289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38721141 + 38721142.

It is an arithmetic number, because the mean of its divisors is an integer number (38721142).

Almost surely, 2^77442283 is an apocalyptic number.

77442283 is a deficient number, since it is larger than the sum of its proper divisors (1).

77442283 is an equidigital number, since it uses as much as digits as its factorization.

77442283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 37.

The square root of 77442283 is about 8800.1297149531. The cubic root of 77442283 is about 426.2450833189.

The spelling of 77442283 in words is "seventy-seven million, four hundred forty-two thousand, two hundred eighty-three".