312652393 has 8 divisors (see below), whose sum is σ = 324609480. Its totient is φ = 300773760.

The previous prime is 312652381. The next prime is 312652411. The reversal of 312652393 is 393256213.

It can be written as a sum of positive squares in 4 ways, for example, as 8219689 + 304432704 = 2867^2 + 17448^2 .

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 312652393 - 2¹³ = 312644201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312652303) 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, 11428 + ... + 27493.

It is an arithmetic number, because the mean of its divisors is an integer number (40576185).

Almost surely, 2^312652393 is an apocalyptic number.

It is an amenable number.

312652393 is a deficient number, since it is larger than the sum of its proper divisors (11957087).

312652393 is a wasteful number, since it uses less digits than its factorization.

312652393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39227.

The product of its digits is 29160, while the sum is 34.

The square root of 312652393 is about 17681.9793292493. The cubic root of 312652393 is about 678.7146950876.

The spelling of 312652393 in words is "three hundred twelve million, six hundred fifty-two thousand, three hundred ninety-three".