43969427 has 8 divisors (see below), whose sum is σ = 44372160. Its totient is φ = 43569000.

The previous prime is 43969397. The next prime is 43969459. The reversal of 43969427 is 72496934.

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 43969427 - 2¹² = 43965331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43969027) 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, 70724 + ... + 71342.

It is an arithmetic number, because the mean of its divisors is an integer number (5546520).

Almost surely, 2^43969427 is an apocalyptic number.

43969427 is a deficient number, since it is larger than the sum of its proper divisors (402733).

43969427 is a wasteful number, since it uses less digits than its factorization.

43969427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153.

The product of its digits is 326592, while the sum is 44.

The square root of 43969427 is about 6630.9446536674. The cubic root of 43969427 is about 352.9530469052.

The spelling of 43969427 in words is "forty-three million, nine hundred sixty-nine thousand, four hundred twenty-seven".