742807853 has 2 divisors, whose sum is σ = 742807854. Its totient is φ = 742807852.

The previous prime is 742807847. The next prime is 742807883. The reversal of 742807853 is 358708247.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380172004 + 362635849 = 19498^2 + 19043^2 .

It is a cyclic number.

It is not a de Polignac number, because 742807853 - 2¹⁰ = 742806829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742807883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371403926 + 371403927.

It is an arithmetic number, because the mean of its divisors is an integer number (371403927).

Almost surely, 2^742807853 is an apocalyptic number.

It is an amenable number.

742807853 is a deficient number, since it is larger than the sum of its proper divisors (1).

742807853 is an equidigital number, since it uses as much as digits as its factorization.

742807853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 742807853 is about 27254.5015180979. The cubic root of 742807853 is about 905.6467413955.

The spelling of 742807853 in words is "seven hundred forty-two million, eight hundred seven thousand, eight hundred fifty-three".