64376533 has 8 divisors (see below), whose sum is σ = 70465976. Its totient is φ = 58449600.

The previous prime is 64376531. The next prime is 64376537. The reversal of 64376533 is 33567346.

It can be written as a sum of positive squares in 4 ways, for example, as 88209 + 64288324 = 297^2 + 8018^2 .

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 64376533 - 2¹ = 64376531 is a prime.

It is a super-2 number, since 2×64376533² = 8288676002200178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64376492 and 64376501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64376531) 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, 39798 + ... + 41383.

It is an arithmetic number, because the mean of its divisors is an integer number (8808247).

Almost surely, 2^64376533 is an apocalyptic number.

It is an amenable number.

64376533 is a deficient number, since it is larger than the sum of its proper divisors (6089443).

64376533 is a wasteful number, since it uses less digits than its factorization.

64376533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81255.

The product of its digits is 136080, while the sum is 37.

The square root of 64376533 is about 8023.4988003987. The cubic root of 64376533 is about 400.7829103786.

The spelling of 64376533 in words is "sixty-four million, three hundred seventy-six thousand, five hundred thirty-three".