43970087 has 8 divisors (see below), whose sum is σ = 50959872. Its totient is φ = 37157400.

The previous prime is 43970083. The next prime is 43970093. The reversal of 43970087 is 78007934.

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

It is not a de Polignac number, because 43970087 - 2² = 43970083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43970087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43970083) 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, 43739 + ... + 44732.

It is an arithmetic number, because the mean of its divisors is an integer number (6369984).

Almost surely, 2^43970087 is an apocalyptic number.

43970087 is a deficient number, since it is larger than the sum of its proper divisors (6989785).

43970087 is an equidigital number, since it uses as much as digits as its factorization.

43970087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88549.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 43970087 is about 6630.9944201454. The cubic root of 43970087 is about 352.9548128887.

The spelling of 43970087 in words is "forty-three million, nine hundred seventy thousand, eighty-seven".