64534193 has 16 divisors (see below), whose sum is σ = 71124480. Its totient is φ = 58281216.

The previous prime is 64534189. The next prime is 64534201. The reversal of 64534193 is 39143546.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64534193 - 2² = 64534189 is a prime.

It is a super-2 number, since 2×64534193² = 8329324132322498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64534153) 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, 109646 + ... + 110232.

It is an arithmetic number, because the mean of its divisors is an integer number (4445280).

Almost surely, 2^64534193 is an apocalyptic number.

It is an amenable number.

64534193 is a deficient number, since it is larger than the sum of its proper divisors (6590287).

64534193 is a wasteful number, since it uses less digits than its factorization.

64534193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its digits is 38880, while the sum is 35.

The square root of 64534193 is about 8033.3176832489. The cubic root of 64534193 is about 401.1098199845.

The spelling of 64534193 in words is "sixty-four million, five hundred thirty-four thousand, one hundred ninety-three".