396700992 has 42 divisors (see below), whose sum is σ = 1137073418. Its totient is φ = 132233472.

The previous prime is 396700979. The next prime is 396700999. The reversal of 396700992 is 299007693.

It can be written as a sum of positive squares in only one way, i.e., 386358336 + 10342656 = 19656^2 + 3216^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396700999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 343783 + ... + 344934.

Almost surely, 2^396700992 is an apocalyptic number.

396700992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

396700992 is an abundant number, since it is smaller than the sum of its proper divisors (740372426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396700992 is a wasteful number, since it uses less digits than its factorization.

396700992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688735 (or 688722 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 396700992 is about 19917.3540411371. The cubic root of 396700992 is about 734.7750970920.

The spelling of 396700992 in words is "three hundred ninety-six million, seven hundred thousand, nine hundred ninety-two".