748321397 has 2 divisors, whose sum is σ = 748321398. Its totient is φ = 748321396.

The previous prime is 748321393. The next prime is 748321429. The reversal of 748321397 is 793123847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380679121 + 367642276 = 19511^2 + 19174^2 .

It is a cyclic number.

It is not a de Polignac number, because 748321397 - 2² = 748321393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748321393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374160698 + 374160699.

It is an arithmetic number, because the mean of its divisors is an integer number (374160699).

Almost surely, 2^748321397 is an apocalyptic number.

It is an amenable number.

748321397 is a deficient number, since it is larger than the sum of its proper divisors (1).

748321397 is an equidigital number, since it uses as much as digits as its factorization.

748321397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 748321397 is about 27355.4637504101. The cubic root of 748321397 is about 907.8819625230.

The spelling of 748321397 in words is "seven hundred forty-eight million, three hundred twenty-one thousand, three hundred ninety-seven".