746641457 has 2 divisors, whose sum is σ = 746641458. Its totient is φ = 746641456.

The previous prime is 746641451. The next prime is 746641459. The reversal of 746641457 is 754146647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498137761 + 248503696 = 22319^2 + 15764^2 .

It is a cyclic number.

It is not a de Polignac number, because 746641457 - 2¹⁸ = 746379313 is a prime.

It is a super-2 number, since 2×746641457² = 1114946930622165698, which contains 22 as substring.

Together with 746641459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (746641451) 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, 373320728 + 373320729.

It is an arithmetic number, because the mean of its divisors is an integer number (373320729).

Almost surely, 2^746641457 is an apocalyptic number.

It is an amenable number.

746641457 is a deficient number, since it is larger than the sum of its proper divisors (1).

746641457 is an equidigital number, since it uses as much as digits as its factorization.

746641457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 44.

The square root of 746641457 is about 27324.7407489989. The cubic root of 746641457 is about 907.2020719590.

The spelling of 746641457 in words is "seven hundred forty-six million, six hundred forty-one thousand, four hundred fifty-seven".