312204397 has 8 divisors (see below), whose sum is σ = 318409056. Its totient is φ = 306011472.

The previous prime is 312204383. The next prime is 312204479. The reversal of 312204397 is 793402213.

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 312204397 - 2¹¹ = 312202349 is a prime.

It is a super-2 number, since 2×312204397² = 194943171012267218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312204307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67018 + ... + 71524.

It is an arithmetic number, because the mean of its divisors is an integer number (39801132).

Almost surely, 2^312204397 is an apocalyptic number.

It is an amenable number.

312204397 is a deficient number, since it is larger than the sum of its proper divisors (6204659).

312204397 is a wasteful number, since it uses less digits than its factorization.

312204397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 312204397 is about 17669.3066360851. The cubic root of 312204397 is about 678.3903659820.

The spelling of 312204397 in words is "three hundred twelve million, two hundred four thousand, three hundred ninety-seven".