897407263 has 4 divisors (see below), whose sum is σ = 897791328. Its totient is φ = 897023200.

The previous prime is 897407227. The next prime is 897407279. The reversal of 897407263 is 362704798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 897407263 - 2⁹ = 897406751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897407363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188506 + ... + 193207.

It is an arithmetic number, because the mean of its divisors is an integer number (224447832).

Almost surely, 2^897407263 is an apocalyptic number.

897407263 is a deficient number, since it is larger than the sum of its proper divisors (384065).

897407263 is a wasteful number, since it uses less digits than its factorization.

897407263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384064.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 897407263 is about 29956.7565500673. The cubic root of 897407263 is about 964.5613595248.

The spelling of 897407263 in words is "eight hundred ninety-seven million, four hundred seven thousand, two hundred sixty-three".