65898897 has 8 divisors (see below), whose sum is σ = 92489760. Its totient is φ = 41620320.

The previous prime is 65898871. The next prime is 65898913. The reversal of 65898897 is 79889856.

It is a happy number.

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

It is not a de Polignac number, because 65898897 - 2¹¹ = 65896849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65898897.

It is not an unprimeable number, because it can be changed into a prime (65898827) 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, 578004 + ... + 578117.

It is an arithmetic number, because the mean of its divisors is an integer number (11561220).

Almost surely, 2^65898897 is an apocalyptic number.

It is an amenable number.

65898897 is a deficient number, since it is larger than the sum of its proper divisors (26590863).

65898897 is a wasteful number, since it uses less digits than its factorization.

65898897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156143.

The product of its digits is 8709120, while the sum is 60.

The square root of 65898897 is about 8117.8135603129. The cubic root of 65898897 is about 403.9175423158.

It can be divided in two parts, 65898 and 897, that added together give a triangular number (66795 = T₃₆₅).

The spelling of 65898897 in words is "sixty-five million, eight hundred ninety-eight thousand, eight hundred ninety-seven".