745397 has 2 divisors, whose sum is σ = 745398. Its totient is φ = 745396.

The previous prime is 745391. The next prime is 745471. The reversal of 745397 is 793547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625681 + 119716 = 791^2 + 346^2 .

It is an emirp because it is prime and its reverse (793547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745397 - 2⁸ = 745141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372698 + 372699.

It is an arithmetic number, because the mean of its divisors is an integer number (372699).

2⁷⁴⁵³⁹⁷ is an apocalyptic number.

It is an amenable number.

745397 is a deficient number, since it is larger than the sum of its proper divisors (1).

745397 is an equidigital number, since it uses as much as digits as its factorization.

745397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 35.

The square root of 745397 is about 863.3637703772. The cubic root of 745397 is about 90.6697768421.

The spelling of 745397 in words is "seven hundred forty-five thousand, three hundred ninety-seven".