1002244897 has 4 divisors (see below), whose sum is σ = 1002353940. Its totient is φ = 1002135856.

The previous prime is 1002244853. The next prime is 1002244907. The reversal of 1002244897 is 7984422001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7984422001 = 1499 ⋅5326499.

It can be written as a sum of positive squares in 2 ways, for example, as 850363921 + 151880976 = 29161^2 + 12324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002244897 - 2⁷ = 1002244769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002244847) 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, 39322 + ... + 59587.

It is an arithmetic number, because the mean of its divisors is an integer number (250588485).

Almost surely, 2^1002244897 is an apocalyptic number.

It is an amenable number.

1002244897 is a deficient number, since it is larger than the sum of its proper divisors (109043).

1002244897 is an equidigital number, since it uses as much as digits as its factorization.

1002244897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109042.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1002244897 is about 31658.2516415547. The cubic root of 1002244897 is about 1000.7477397459.

Adding to 1002244897 its reverse (7984422001), we get a palindrome (8986666898).

The spelling of 1002244897 in words is "one billion, two million, two hundred forty-four thousand, eight hundred ninety-seven".