897534587 has 4 divisors (see below), whose sum is σ = 898195416. Its totient is φ = 896873760.

The previous prime is 897534551. The next prime is 897534611. The reversal of 897534587 is 785435798.

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 897534587 - 2¹⁶ = 897469051 is a prime.

It is a super-2 number, since 2×897534587² = 1611136669722521138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897531587) 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, 328373 + ... + 331094.

It is an arithmetic number, because the mean of its divisors is an integer number (224548854).

Almost surely, 2^897534587 is an apocalyptic number.

897534587 is a deficient number, since it is larger than the sum of its proper divisors (660829).

897534587 is a wasteful number, since it uses less digits than its factorization.

897534587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660828.

The product of its digits is 8467200, while the sum is 56.

The square root of 897534587 is about 29958.8816046260. The cubic root of 897534587 is about 964.6069746385.

The spelling of 897534587 in words is "eight hundred ninety-seven million, five hundred thirty-four thousand, five hundred eighty-seven".