4628281997 has 4 divisors (see below), whose sum is σ = 4641543900. Its totient is φ = 4615020096.

The previous prime is 4628281993. The next prime is 4628282017. The reversal of 4628281997 is 7991828264.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4016263876 + 612018121 = 63374^2 + 24739^2 .

It is a cyclic number.

It is not a de Polignac number, because 4628281997 - 2² = 4628281993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4628281993) 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, 6630428 + ... + 6631125.

It is an arithmetic number, because the mean of its divisors is an integer number (1160385975).

Almost surely, 2^4628281997 is an apocalyptic number.

It is an amenable number.

4628281997 is a deficient number, since it is larger than the sum of its proper divisors (13261903).

4628281997 is a wasteful number, since it uses less digits than its factorization.

4628281997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13261902.

The product of its digits is 3483648, while the sum is 56.

The square root of 4628281997 is about 68031.4779862969. The cubic root of 4628281997 is about 1666.5049350574.

The spelling of 4628281997 in words is "four billion, six hundred twenty-eight million, two hundred eighty-one thousand, nine hundred ninety-seven".