742733657 has 2 divisors, whose sum is σ = 742733658. Its totient is φ = 742733656.

The previous prime is 742733653. The next prime is 742733701. The reversal of 742733657 is 756337247.

742733657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (742733701) can be obtained adding 742733657 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607918336 + 134815321 = 24656^2 + 11611^2 .

It is a cyclic number.

It is not a de Polignac number, because 742733657 - 2² = 742733653 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (742733653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371366828 + 371366829.

It is an arithmetic number, because the mean of its divisors is an integer number (371366829).

Almost surely, 2^742733657 is an apocalyptic number.

It is an amenable number.

742733657 is a deficient number, since it is larger than the sum of its proper divisors (1).

742733657 is an equidigital number, since it uses as much as digits as its factorization.

742733657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 740880, while the sum is 44.

The square root of 742733657 is about 27253.1403144665. The cubic root of 742733657 is about 905.6165866241.

The spelling of 742733657 in words is "seven hundred forty-two million, seven hundred thirty-three thousand, six hundred fifty-seven".