2421003397 has 2 divisors, whose sum is σ = 2421003398. Its totient is φ = 2421003396.

The previous prime is 2421003367. The next prime is 2421003467. The reversal of 2421003397 is 7933001242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2197171876 + 223831521 = 46874^2 + 14961^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421003397 - 2¹⁹ = 2420479109 is a prime.

It is a super-2 number, since 2×2421003397² = 11722514896571079218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421003367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210501698 + 1210501699.

It is an arithmetic number, because the mean of its divisors is an integer number (1210501699).

Almost surely, 2^2421003397 is an apocalyptic number.

It is an amenable number.

2421003397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421003397 is an equidigital number, since it uses as much as digits as its factorization.

2421003397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2421003397 is about 49203.6929203490. The cubic root of 2421003397 is about 1342.7602191200.

The spelling of 2421003397 in words is "two billion, four hundred twenty-one million, three thousand, three hundred ninety-seven".