65897331 has 8 divisors (see below), whose sum is σ = 87921360. Its totient is φ = 43902432.

The previous prime is 65897329. The next prime is 65897347. The reversal of 65897331 is 13379856.

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

It is not a de Polignac number, because 65897331 - 2¹ = 65897329 is a prime.

It is a super-2 number, since 2×65897331² = 8684916465847122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65897311) 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, 1300 + ... + 11553.

It is an arithmetic number, because the mean of its divisors is an integer number (10990170).

Almost surely, 2^65897331 is an apocalyptic number.

65897331 is a deficient number, since it is larger than the sum of its proper divisors (22024029).

65897331 is a wasteful number, since it uses less digits than its factorization.

65897331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14565.

The product of its digits is 136080, while the sum is 42.

The square root of 65897331 is about 8117.7171051965. The cubic root of 65897331 is about 403.9143427687.

The spelling of 65897331 in words is "sixty-five million, eight hundred ninety-seven thousand, three hundred thirty-one".