396127649 has 2 divisors, whose sum is σ = 396127650. Its totient is φ = 396127648.

The previous prime is 396127639. The next prime is 396127663. The reversal of 396127649 is 946721693.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396010000 + 117649 = 19900^2 + 343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396127649 is a prime.

It is a super-2 number, since 2×396127649² = 313834228604534402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396127639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198063824 + 198063825.

It is an arithmetic number, because the mean of its divisors is an integer number (198063825).

Almost surely, 2^396127649 is an apocalyptic number.

It is an amenable number.

396127649 is a deficient number, since it is larger than the sum of its proper divisors (1).

396127649 is an equidigital number, since it uses as much as digits as its factorization.

396127649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The square root of 396127649 is about 19902.9557855109. The cubic root of 396127649 is about 734.4209417922.

The spelling of 396127649 in words is "three hundred ninety-six million, one hundred twenty-seven thousand, six hundred forty-nine".