897359551 has 4 divisors (see below), whose sum is σ = 978937704. Its totient is φ = 815781400.

The previous prime is 897359543. The next prime is 897359591. The reversal of 897359551 is 155953798.

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 897359551 - 2³ = 897359543 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 (897359591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40789060 + ... + 40789081.

It is an arithmetic number, because the mean of its divisors is an integer number (244734426).

Almost surely, 2^897359551 is an apocalyptic number.

897359551 is a deficient number, since it is larger than the sum of its proper divisors (81578153).

897359551 is a wasteful number, since it uses less digits than its factorization.

897359551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81578152.

The product of its digits is 1701000, while the sum is 52.

The square root of 897359551 is about 29955.9601915879. The cubic root of 897359551 is about 964.5442651059.

The spelling of 897359551 in words is "eight hundred ninety-seven million, three hundred fifty-nine thousand, five hundred fifty-one".