396666693 has 16 divisors (see below), whose sum is σ = 593476800. Its totient is φ = 261824400.

The previous prime is 396666691. The next prime is 396666703.

396666693 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 396666693 - 2¹ = 396666691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396666691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70003 + ... + 75456.

It is an arithmetic number, because the mean of its divisors is an integer number (37092300).

Almost surely, 2^396666693 is an apocalyptic number.

It is an amenable number.

396666693 is a deficient number, since it is larger than the sum of its proper divisors (196810107).

396666693 is a wasteful number, since it uses less digits than its factorization.

396666693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145569 (or 145563 counting only the distinct ones).

The product of its digits is 5668704, while the sum is 54.

The square root of 396666693 is about 19916.4929894798. The cubic root of 396666693 is about 734.7539201200.

The spelling of 396666693 in words is "three hundred ninety-six million, six hundred sixty-six thousand, six hundred ninety-three".