44064487 has 4 divisors (see below), whose sum is σ = 44109000. Its totient is φ = 44019976.

The previous prime is 44064473. The next prime is 44064491. The reversal of 44064487 is 78446044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44064487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44064407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20737 + ... + 22762.

It is an arithmetic number, because the mean of its divisors is an integer number (11027250).

Almost surely, 2^44064487 is an apocalyptic number.

44064487 is a deficient number, since it is larger than the sum of its proper divisors (44513).

44064487 is a wasteful number, since it uses less digits than its factorization.

44064487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44512.

The product of its (nonzero) digits is 86016, while the sum is 37.

The square root of 44064487 is about 6638.1086914874. The cubic root of 44064487 is about 353.2072202313.

It can be divided in two parts, 44064 and 487, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 44064487 in words is "forty-four million, sixty-four thousand, four hundred eighty-seven".