2497321 has 2 divisors, whose sum is σ = 2497322. Its totient is φ = 2497320.

The previous prime is 2497309. The next prime is 2497333. The reversal of 2497321 is 1237942.

It is a balanced prime because it is at equal distance from previous prime (2497309) and next prime (2497333).

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 354025 = 1464^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497321 - 2⁵ = 2497289 is a prime.

It is a super-2 number, since 2×2497321² = 12473224354082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2497321.

It is not a weakly prime, because it can be changed into another prime (2497301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248660 + 1248661.

It is an arithmetic number, because the mean of its divisors is an integer number (1248661).

2^2497321 is an apocalyptic number.

It is an amenable number.

2497321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497321 is an equidigital number, since it uses as much as digits as its factorization.

2497321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 2497321 is about 1580.2914288194. The cubic root of 2497321 is about 135.6723840039.

The spelling of 2497321 in words is "two million, four hundred ninety-seven thousand, three hundred twenty-one".