897240939 has 8 divisors (see below), whose sum is σ = 1367224320. Its totient is φ = 512709096.

The previous prime is 897240919. The next prime is 897240941. The reversal of 897240939 is 939042798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 897240939 - 2¹¹ = 897238891 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 897240891 and 897240900.

It is not an unprimeable number, because it can be changed into a prime (897240919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21362859 + ... + 21362900.

It is an arithmetic number, because the mean of its divisors is an integer number (170903040).

Almost surely, 2^897240939 is an apocalyptic number.

897240939 is a deficient number, since it is larger than the sum of its proper divisors (469983381).

897240939 is a wasteful number, since it uses less digits than its factorization.

897240939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42725769.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 897240939 is about 29953.9803532018. The cubic root of 897240939 is about 964.5017657661.

The spelling of 897240939 in words is "eight hundred ninety-seven million, two hundred forty thousand, nine hundred thirty-nine".