43487064 has 32 divisors (see below), whose sum is σ = 120798000. Its totient is φ = 14495616.

The previous prime is 43487063. The next prime is 43487149. The reversal of 43487064 is 46078434.

It is a super-2 number, since 2×43487064² = 3782249470680192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43487063) 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, 100449 + ... + 100880.

Almost surely, 2^43487064 is an apocalyptic number.

It is an amenable number.

43487064 is an abundant number, since it is smaller than the sum of its proper divisors (77310936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43487064 is a wasteful number, since it uses less digits than its factorization.

43487064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201344 (or 201334 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 43487064 is about 6594.4722305883. The cubic root of 43487064 is about 351.6576173209.

The spelling of 43487064 in words is "forty-three million, four hundred eighty-seven thousand, sixty-four".