43997079935 has 4 divisors (see below), whose sum is σ = 52796495928. Its totient is φ = 35197663944.

The previous prime is 43997079853. The next prime is 43997079967. The reversal of 43997079935 is 53997079934.

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

It is a cyclic number.

It is not a de Polignac number, because 43997079935 - 2¹² = 43997075839 is a prime.

It is a Duffinian number.

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, 4399707989 + ... + 4399707998.

It is an arithmetic number, because the mean of its divisors is an integer number (13199123982).

Almost surely, 2^43997079935 is an apocalyptic number.

43997079935 is a deficient number, since it is larger than the sum of its proper divisors (8799415993).

43997079935 is an equidigital number, since it uses as much as digits as its factorization.

43997079935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799415992.

The product of its (nonzero) digits is 57868020, while the sum is 65.

Subtracting 43997079935 from its reverse (53997079934), we obtain a palindrome (9999999999).

The spelling of 43997079935 in words is "forty-three billion, nine hundred ninety-seven million, seventy-nine thousand, nine hundred thirty-five".