396477953 has 2 divisors, whose sum is σ = 396477954. Its totient is φ = 396477952.

The previous prime is 396477929. The next prime is 396478009. The reversal of 396477953 is 359774693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294225409 + 102252544 = 17153^2 + 10112^2 .

It is an emirp because it is prime and its reverse (359774693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396477953 - 2¹⁶ = 396412417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 396477895 and 396477904.

It is not a weakly prime, because it can be changed into another prime (396477253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198238976 + 198238977.

It is an arithmetic number, because the mean of its divisors is an integer number (198238977).

Almost surely, 2^396477953 is an apocalyptic number.

It is an amenable number.

396477953 is a deficient number, since it is larger than the sum of its proper divisors (1).

396477953 is an equidigital number, since it uses as much as digits as its factorization.

396477953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 53.

The square root of 396477953 is about 19911.7541417124. The cubic root of 396477953 is about 734.6373659633.

The spelling of 396477953 in words is "three hundred ninety-six million, four hundred seventy-seven thousand, nine hundred fifty-three".