64834445 has 8 divisors (see below), whose sum is σ = 83786136. Its totient is φ = 47877696.

The previous prime is 64834373. The next prime is 64834463. The reversal of 64834445 is 54443846.

It can be written as a sum of positive squares in 4 ways, for example, as 546121 + 64288324 = 739^2 + 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 64834445 - 2¹⁶ = 64768909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64834399 and 64834408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498662 + ... + 498791.

It is an arithmetic number, because the mean of its divisors is an integer number (10473267).

Almost surely, 2^64834445 is an apocalyptic number.

64834445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64834445 is a deficient number, since it is larger than the sum of its proper divisors (18951691).

64834445 is a wasteful number, since it uses less digits than its factorization.

64834445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997471.

The product of its digits is 184320, while the sum is 38.

The square root of 64834445 is about 8051.9839170232. The cubic root of 64834445 is about 401.7309260169.

The spelling of 64834445 in words is "sixty-four million, eight hundred thirty-four thousand, four hundred forty-five".