396009398 has 4 divisors (see below), whose sum is σ = 594014100. Its totient is φ = 198004698.

The previous prime is 396009389. The next prime is 396009401. The reversal of 396009398 is 893900693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893900693 = 7 ⋅127700099.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99002348 + ... + 99002351.

It is an arithmetic number, because the mean of its divisors is an integer number (148503525).

Almost surely, 2^396009398 is an apocalyptic number.

396009398 is a deficient number, since it is larger than the sum of its proper divisors (198004702).

396009398 is a wasteful number, since it uses less digits than its factorization.

396009398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198004701.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 396009398 is about 19899.9848743661. The cubic root of 396009398 is about 734.3478553733.

The spelling of 396009398 in words is "three hundred ninety-six million, nine thousand, three hundred ninety-eight".