321698396 has 6 divisors (see below), whose sum is σ = 562972200. Its totient is φ = 160849196.

The previous prime is 321698381. The next prime is 321698411. The reversal of 321698396 is 693896123.

It is an interprime number because it is at equal distance from previous prime (321698381) and next prime (321698411).

It is a self number, because there is not a number n which added to its sum of digits gives 321698396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40212296 + ... + 40212303.

It is an arithmetic number, because the mean of its divisors is an integer number (93828700).

Almost surely, 2^321698396 is an apocalyptic number.

It is an amenable number.

321698396 is a deficient number, since it is larger than the sum of its proper divisors (241273804).

321698396 is a wasteful number, since it uses less digits than its factorization.

321698396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80424603 (or 80424601 counting only the distinct ones).

The product of its digits is 419904, while the sum is 47.

The square root of 321698396 is about 17935.9526092148. The cubic root of 321698396 is about 685.1983342432.

The spelling of 321698396 in words is "three hundred twenty-one million, six hundred ninety-eight thousand, three hundred ninety-six".