548739797 has 2 divisors, whose sum is σ = 548739798. Its totient is φ = 548739796.

The previous prime is 548739781. The next prime is 548739799. The reversal of 548739797 is 797937845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525372241 + 23367556 = 22921^2 + 4834^2 .

It is a cyclic number.

It is not a de Polignac number, because 548739797 - 2⁴ = 548739781 is a prime.

It is a super-2 number, since 2×548739797² = 602230729623202418, which contains 22 as substring.

Together with 548739799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548739799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274369898 + 274369899.

It is an arithmetic number, because the mean of its divisors is an integer number (274369899).

Almost surely, 2^548739797 is an apocalyptic number.

It is an amenable number.

548739797 is a deficient number, since it is larger than the sum of its proper divisors (1).

548739797 is an equidigital number, since it uses as much as digits as its factorization.

548739797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13335840, while the sum is 59.

The square root of 548739797 is about 23425.1957729279. The cubic root of 548739797 is about 818.6950277409.

The spelling of 548739797 in words is "five hundred forty-eight million, seven hundred thirty-nine thousand, seven hundred ninety-seven".