64419641 has 8 divisors (see below), whose sum is σ = 75681984. Its totient is φ = 54058320.

The previous prime is 64419623. The next prime is 64419659. The reversal of 64419641 is 14691446.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64419623) and next prime (64419659).

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 64419641 - 2⁶ = 64419577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64419661) 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, 225101 + ... + 225386.

It is an arithmetic number, because the mean of its divisors is an integer number (9460248).

Almost surely, 2^64419641 is an apocalyptic number.

It is an amenable number.

64419641 is a deficient number, since it is larger than the sum of its proper divisors (11262343).

64419641 is a wasteful number, since it uses less digits than its factorization.

64419641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450511.

The product of its digits is 20736, while the sum is 35.

The square root of 64419641 is about 8026.1847100599. The cubic root of 64419641 is about 400.8723482218.

The spelling of 64419641 in words is "sixty-four million, four hundred nineteen thousand, six hundred forty-one".