65424491 has 8 divisors (see below), whose sum is σ = 71744304. Its totient is φ = 59166720.

The previous prime is 65424481. The next prime is 65424497. The reversal of 65424491 is 19442456.

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 65424491 - 2⁶ = 65424427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65424497) 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, 13286 + ... + 17531.

It is an arithmetic number, because the mean of its divisors is an integer number (8968038).

Almost surely, 2^65424491 is an apocalyptic number.

65424491 is a deficient number, since it is larger than the sum of its proper divisors (6319813).

65424491 is a wasteful number, since it uses less digits than its factorization.

65424491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31021.

The product of its digits is 34560, while the sum is 35.

The square root of 65424491 is about 8088.5407212921. The cubic root of 65424491 is about 402.9459399148.

The spelling of 65424491 in words is "sixty-five million, four hundred twenty-four thousand, four hundred ninety-one".