312377773 has 2 divisors, whose sum is σ = 312377774. Its totient is φ = 312377772.

The previous prime is 312377761. The next prime is 312377827. The reversal of 312377773 is 377773213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257217444 + 55160329 = 16038^2 + 7427^2 .

It is an emirp because it is prime and its reverse (377773213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312377773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312377573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156188886 + 156188887.

It is an arithmetic number, because the mean of its divisors is an integer number (156188887).

Almost surely, 2^312377773 is an apocalyptic number.

It is an amenable number.

312377773 is a deficient number, since it is larger than the sum of its proper divisors (1).

312377773 is an equidigital number, since it uses as much as digits as its factorization.

312377773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129654, while the sum is 40.

The square root of 312377773 is about 17674.2120899349. The cubic root of 312377773 is about 678.5159192456.

The spelling of 312377773 in words is "three hundred twelve million, three hundred seventy-seven thousand, seven hundred seventy-three".