4398987497 has 4 divisors (see below), whose sum is σ = 4404307536. Its totient is φ = 4393667460.

The previous prime is 4398987479. The next prime is 4398987511. The reversal of 4398987497 is 7947898934.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7947898934 = 2 ⋅3973949467.

It is a cyclic number.

It is not a de Polignac number, because 4398987497 - 2¹² = 4398983401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4398987097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2658779 + ... + 2660432.

It is an arithmetic number, because the mean of its divisors is an integer number (1101076884).

Almost surely, 2^4398987497 is an apocalyptic number.

It is an amenable number.

4398987497 is a deficient number, since it is larger than the sum of its proper divisors (5320039).

4398987497 is an equidigital number, since it uses as much as digits as its factorization.

4398987497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320038.

The product of its digits is 109734912, while the sum is 68.

The square root of 4398987497 is about 66324.8633394747. The cubic root of 4398987497 is about 1638.5168398552.

The spelling of 4398987497 in words is "four billion, three hundred ninety-eight million, nine hundred eighty-seven thousand, four hundred ninety-seven".