742736077 has 2 divisors, whose sum is σ = 742736078. Its totient is φ = 742736076.

The previous prime is 742736063. The next prime is 742736083. The reversal of 742736077 is 770637247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617721316 + 125014761 = 24854^2 + 11181^2 .

It is a cyclic number.

It is not a de Polignac number, because 742736077 - 2⁷ = 742735949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742736017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371368038 + 371368039.

It is an arithmetic number, because the mean of its divisors is an integer number (371368039).

Almost surely, 2^742736077 is an apocalyptic number.

It is an amenable number.

742736077 is a deficient number, since it is larger than the sum of its proper divisors (1).

742736077 is an equidigital number, since it uses as much as digits as its factorization.

742736077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 43.

The square root of 742736077 is about 27253.1847129835. The cubic root of 742736077 is about 905.6175701933.

The spelling of 742736077 in words is "seven hundred forty-two million, seven hundred thirty-six thousand, seventy-seven".