64430501 has 8 divisors (see below), whose sum is σ = 67895520. Its totient is φ = 60972912.

The previous prime is 64430497. The next prime is 64430503. The reversal of 64430501 is 10503446.

It is a happy number.

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 64430501 - 2² = 64430497 is a prime.

It is a super-2 number, since 2×64430501² = 8302578918222002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430503) 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, 31166 + ... + 33168.

It is an arithmetic number, because the mean of its divisors is an integer number (8486940).

Almost surely, 2^64430501 is an apocalyptic number.

It is an amenable number.

64430501 is a deficient number, since it is larger than the sum of its proper divisors (3465019).

64430501 is a wasteful number, since it uses less digits than its factorization.

64430501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 64430501 is about 8026.8612171882. The cubic root of 64430501 is about 400.8948735935.

Adding to 64430501 its reverse (10503446), we get a palindrome (74933947).

The spelling of 64430501 in words is "sixty-four million, four hundred thirty thousand, five hundred one".