312620377 has 8 divisors (see below), whose sum is σ = 324203400. Its totient is φ = 301090944.

The previous prime is 312620353. The next prime is 312620381. The reversal of 312620377 is 773026213.

It can be written as a sum of positive squares in 4 ways, for example, as 96412761 + 216207616 = 9819^2 + 14704^2 .

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 312620377 - 2¹¹ = 312618329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312620387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318 + ... + 25039.

It is an arithmetic number, because the mean of its divisors is an integer number (40525425).

Almost surely, 2^312620377 is an apocalyptic number.

It is an amenable number.

312620377 is a deficient number, since it is larger than the sum of its proper divisors (11583023).

312620377 is a wasteful number, since it uses less digits than its factorization.

312620377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26795.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 312620377 is about 17681.0739775614. The cubic root of 312620377 is about 678.6915272161.

The spelling of 312620377 in words is "three hundred twelve million, six hundred twenty thousand, three hundred seventy-seven".