43447966 has 8 divisors (see below), whose sum is σ = 68005584. Its totient is φ = 20779440.

The previous prime is 43447933. The next prime is 43447973. The reversal of 43447966 is 66974434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472215 + ... + 472306.

It is an arithmetic number, because the mean of its divisors is an integer number (8500698).

Almost surely, 2^43447966 is an apocalyptic number.

43447966 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

43447966 is a deficient number, since it is larger than the sum of its proper divisors (24557618).

43447966 is a wasteful number, since it uses less digits than its factorization.

43447966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944546.

The product of its digits is 435456, while the sum is 43.

The square root of 43447966 is about 6591.5071114276. The cubic root of 43447966 is about 351.5521972197.

It can be divided in two parts, 434 and 47966, that added together give a square (48400 = 220²).

The spelling of 43447966 in words is "forty-three million, four hundred forty-seven thousand, nine hundred sixty-six".