65340091 has 8 divisors (see below), whose sum is σ = 67003200. Its totient is φ = 63683592.

The previous prime is 65340083. The next prime is 65340109. The reversal of 65340091 is 19004356.

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

It is a cyclic number.

It is not a de Polignac number, because 65340091 - 2³ = 65340083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65340001) 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, 22860 + ... + 25558.

It is an arithmetic number, because the mean of its divisors is an integer number (8375400).

Almost surely, 2^65340091 is an apocalyptic number.

65340091 is a deficient number, since it is larger than the sum of its proper divisors (1663109).

65340091 is a wasteful number, since it uses less digits than its factorization.

65340091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 65340091 is about 8083.3217800605. The cubic root of 65340091 is about 402.7725936575.

The spelling of 65340091 in words is "sixty-five million, three hundred forty thousand, ninety-one".