897406756 has 24 divisors (see below), whose sum is σ = 1599927840. Its totient is φ = 440311872.

The previous prime is 897406751. The next prime is 897406781. The reversal of 897406756 is 657604798.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (897406751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142531 + ... + 148693.

It is an arithmetic number, because the mean of its divisors is an integer number (66663660).

Almost surely, 2^897406756 is an apocalyptic number.

It is an amenable number.

897406756 is a deficient number, since it is larger than the sum of its proper divisors (702521084).

897406756 is a wasteful number, since it uses less digits than its factorization.

897406756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843 (or 6841 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 897406756 is about 29956.7480878683. The cubic root of 897406756 is about 964.5611778783.

The spelling of 897406756 in words is "eight hundred ninety-seven million, four hundred six thousand, seven hundred fifty-six".