396818626 has 4 divisors (see below), whose sum is σ = 595227942. Its totient is φ = 198409312.

The previous prime is 396818621. The next prime is 396818633. The reversal of 396818626 is 626818693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 215943025 + 180875601 = 14695^2 + 13449^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 396818626.

It is not an unprimeable number, because it can be changed into a prime (396818621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99204655 + ... + 99204658.

Almost surely, 2^396818626 is an apocalyptic number.

396818626 is a deficient number, since it is larger than the sum of its proper divisors (198409316).

396818626 is a wasteful number, since it uses less digits than its factorization.

396818626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198409315.

The product of its digits is 746496, while the sum is 49.

The square root of 396818626 is about 19920.3068751463. The cubic root of 396818626 is about 734.8477176916.

The spelling of 396818626 in words is "three hundred ninety-six million, eight hundred eighteen thousand, six hundred twenty-six".