549744077 has 2 divisors, whose sum is σ = 549744078. Its totient is φ = 549744076.

The previous prime is 549744071. The next prime is 549744103. The reversal of 549744077 is 770447945.

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., 526886116 + 22857961 = 22954^2 + 4781^2 .

It is a cyclic number.

It is not a de Polignac number, because 549744077 - 2⁴ = 549744061 is a prime.

It is a super-3 number, since 3×549744077³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549744071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274872038 + 274872039.

It is an arithmetic number, because the mean of its divisors is an integer number (274872039).

Almost surely, 2^549744077 is an apocalyptic number.

It is an amenable number.

549744077 is a deficient number, since it is larger than the sum of its proper divisors (1).

549744077 is an equidigital number, since it uses as much as digits as its factorization.

549744077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987840, while the sum is 47.

The square root of 549744077 is about 23446.6218675527. The cubic root of 549744077 is about 819.1941701832.

The spelling of 549744077 in words is "five hundred forty-nine million, seven hundred forty-four thousand, seventy-seven".