747371057 has 2 divisors, whose sum is σ = 747371058. Its totient is φ = 747371056.

The previous prime is 747371011. The next prime is 747371059. The reversal of 747371057 is 750173747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505755121 + 241615936 = 22489^2 + 15544^2 .

It is an emirp because it is prime and its reverse (750173747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 747371057 - 2¹⁸ = 747108913 is a prime.

Together with 747371059, 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 (747371059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373685528 + 373685529.

It is an arithmetic number, because the mean of its divisors is an integer number (373685529).

Almost surely, 2^747371057 is an apocalyptic number.

It is an amenable number.

747371057 is a deficient number, since it is larger than the sum of its proper divisors (1).

747371057 is an equidigital number, since it uses as much as digits as its factorization.

747371057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144060, while the sum is 41.

The square root of 747371057 is about 27338.0880275121. The cubic root of 747371057 is about 907.4974744116.

The spelling of 747371057 in words is "seven hundred forty-seven million, three hundred seventy-one thousand, fifty-seven".