547400857 has 2 divisors, whose sum is σ = 547400858. Its totient is φ = 547400856.

The previous prime is 547400837. The next prime is 547400863. The reversal of 547400857 is 758004745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 531948096 + 15452761 = 23064^2 + 3931^2 .

It is a cyclic number.

It is not a de Polignac number, because 547400857 - 2¹⁹ = 546876569 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (547400827) 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, 273700428 + 273700429.

It is an arithmetic number, because the mean of its divisors is an integer number (273700429).

Almost surely, 2^547400857 is an apocalyptic number.

It is an amenable number.

547400857 is a deficient number, since it is larger than the sum of its proper divisors (1).

547400857 is an equidigital number, since it uses as much as digits as its factorization.

547400857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 547400857 is about 23396.5992614311. The cubic root of 547400857 is about 818.0286060540.

The spelling of 547400857 in words is "five hundred forty-seven million, four hundred thousand, eight hundred fifty-seven".