396897759 has 32 divisors (see below), whose sum is σ = 624335040. Its totient is φ = 248334336.

The previous prime is 396897719. The next prime is 396897769. The reversal of 396897759 is 957798693.

Together with 227437280 it forms a betrothed pair.

It is not a de Polignac number, because 396897759 - 2⁸ = 396897503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 396897696 and 396897705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396897719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197749 + ... + 199745.

It is an arithmetic number, because the mean of its divisors is an integer number (19510470).

Almost surely, 2^396897759 is an apocalyptic number.

396897759 is a deficient number, since it is larger than the sum of its proper divisors (227437281).

396897759 is a wasteful number, since it uses less digits than its factorization.

396897759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456 (or 2450 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The square root of 396897759 is about 19922.2930156144. The cubic root of 396897759 is about 734.8965618701.

The spelling of 396897759 in words is "three hundred ninety-six million, eight hundred ninety-seven thousand, seven hundred fifty-nine".