747457 has 2 divisors, whose sum is σ = 747458. Its totient is φ = 747456.

The previous prime is 747451. The next prime is 747463. The reversal of 747457 is 754747.

It is a balanced prime because it is at equal distance from previous prime (747451) and next prime (747463).

It can be written as a sum of positive squares in only one way, i.e., 746496 + 961 = 864^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 747457 - 2³ = 747449 is a prime.

It is not a weakly prime, because it can be changed into another prime (747451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373728 + 373729.

It is an arithmetic number, because the mean of its divisors is an integer number (373729).

2⁷⁴⁷⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

747457 is a deficient number, since it is larger than the sum of its proper divisors (1).

747457 is an equidigital number, since it uses as much as digits as its factorization.

747457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27440, while the sum is 34.

The square root of 747457 is about 864.5559553898. Note that the first 3 decimals coincide. The cubic root of 747457 is about 90.7532258591.

The spelling of 747457 in words is "seven hundred forty-seven thousand, four hundred fifty-seven".