396073691 has 16 divisors (see below), whose sum is σ = 433777344. Its totient is φ = 359437824.

The previous prime is 396073687. The next prime is 396073693. The reversal of 396073691 is 196370693.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 396073691 - 2² = 396073687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396073693) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 461735 + ... + 462591.

It is an arithmetic number, because the mean of its divisors is an integer number (27111084).

Almost surely, 2^396073691 is an apocalyptic number.

396073691 is a deficient number, since it is larger than the sum of its proper divisors (37703653).

396073691 is a wasteful number, since it uses less digits than its factorization.

396073691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 396073691 is about 19901.6002120433. The cubic root of 396073691 is about 734.3875942213.

The spelling of 396073691 in words is "three hundred ninety-six million, seventy-three thousand, six hundred ninety-one".