749557 has 2 divisors, whose sum is σ = 749558. Its totient is φ = 749556.

The previous prime is 749543. The next prime is 749587. The reversal of 749557 is 755947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 505521 + 244036 = 711^2 + 494^2 .

It is a cyclic number.

It is not a de Polignac number, because 749557 - 2⁷ = 749429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374778 + 374779.

It is an arithmetic number, because the mean of its divisors is an integer number (374779).

2⁷⁴⁹⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

749557 is a deficient number, since it is larger than the sum of its proper divisors (1).

749557 is an equidigital number, since it uses as much as digits as its factorization.

749557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 37.

The square root of 749557 is about 865.7695998359. The cubic root of 749557 is about 90.8381375757.

The spelling of 749557 in words is "seven hundred forty-nine thousand, five hundred fifty-seven".