64503338 has 32 divisors (see below), whose sum is σ = 104996736. Its totient is φ = 29611008.

The previous prime is 64503331. The next prime is 64503371. The reversal of 64503338 is 83330546.

It is a super-3 number, since 3×64503338³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64503331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395645 + ... + 395807.

It is an arithmetic number, because the mean of its divisors is an integer number (3281148).

Almost surely, 2^64503338 is an apocalyptic number.

64503338 is a deficient number, since it is larger than the sum of its proper divisors (40493398).

64503338 is a wasteful number, since it uses less digits than its factorization.

64503338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 64503338 is about 8031.3970142186. The cubic root of 64503338 is about 401.0458837677.

The spelling of 64503338 in words is "sixty-four million, five hundred three thousand, three hundred thirty-eight".