4428691897 has 8 divisors (see below), whose sum is σ = 5062052736. Its totient is φ = 3795503712.

The previous prime is 4428691843. The next prime is 4428691933. The reversal of 4428691897 is 7981968244.

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

It is not a de Polignac number, because 4428691897 - 2¹¹ = 4428689849 is a prime.

It is a super-2 number, since 2×4428691897² = 39226623837106917218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4428691997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17493 + ... + 95725.

It is an arithmetic number, because the mean of its divisors is an integer number (632756592).

Almost surely, 2^4428691897 is an apocalyptic number.

It is an amenable number.

4428691897 is a deficient number, since it is larger than the sum of its proper divisors (633360839).

4428691897 is an equidigital number, since it uses as much as digits as its factorization.

4428691897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86327.

The product of its digits is 6967296, while the sum is 58.

The square root of 4428691897 is about 66548.4176896791. The cubic root of 4428691897 is about 1642.1966273246.

The spelling of 4428691897 in words is "four billion, four hundred twenty-eight million, six hundred ninety-one thousand, eight hundred ninety-seven".