396127786 has 16 divisors (see below), whose sum is σ = 603174600. Its totient is φ = 195086848.

The previous prime is 396127783. The next prime is 396127807. The reversal of 396127786 is 687721693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 237745561 + 158382225 = 15419^2 + 12585^2 .

It is not an unprimeable number, because it can be changed into a prime (396127783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43746 + ... + 52018.

Almost surely, 2^396127786 is an apocalyptic number.

396127786 is a deficient number, since it is larger than the sum of its proper divisors (207046814).

396127786 is a wasteful number, since it uses less digits than its factorization.

396127786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8633.

The product of its digits is 762048, while the sum is 49.

The square root of 396127786 is about 19902.9592272104. The cubic root of 396127786 is about 734.4210264583.

The spelling of 396127786 in words is "three hundred ninety-six million, one hundred twenty-seven thousand, seven hundred eighty-six".