451397 has 2 divisors, whose sum is σ = 451398. Its totient is φ = 451396.

The previous prime is 451387. The next prime is 451411. The reversal of 451397 is 793154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450241 + 1156 = 671^2 + 34^2 .

It is a cyclic number.

It is not a de Polignac number, because 451397 - 2¹⁸ = 189253 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 451397.

It is not a weakly prime, because it can be changed into another prime (451337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225698 + 225699.

It is an arithmetic number, because the mean of its divisors is an integer number (225699).

2⁴⁵¹³⁹⁷ is an apocalyptic number.

It is an amenable number.

451397 is a deficient number, since it is larger than the sum of its proper divisors (1).

451397 is an equidigital number, since it uses as much as digits as its factorization.

451397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 451397 is about 671.8608486882. The cubic root of 451397 is about 76.7101601563.

It can be divided in two parts, 451 and 397, that added together give a palindrome (848).

The spelling of 451397 in words is "four hundred fifty-one thousand, three hundred ninety-seven".