1400297 has 2 divisors, whose sum is σ = 1400298. Its totient is φ = 1400296.

The previous prime is 1400279. The next prime is 1400299. The reversal of 1400297 is 7920041.

Together with previous prime (1400279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1125721 + 274576 = 1061^2 + 524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400297 - 2¹⁰ = 1399273 is a prime.

Together with 1400299, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1400299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700148 + 700149.

It is an arithmetic number, because the mean of its divisors is an integer number (700149).

2^1400297 is an apocalyptic number.

It is an amenable number.

1400297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400297 is an equidigital number, since it uses as much as digits as its factorization.

1400297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1400297 is about 1183.3414553712. The cubic root of 1400297 is about 111.8768043778.

The spelling of 1400297 in words is "one million, four hundred thousand, two hundred ninety-seven".