677148203 has 2 divisors, whose sum is σ = 677148204. Its totient is φ = 677148202.

The previous prime is 677148167. The next prime is 677148209. The reversal of 677148203 is 302841776.

677148203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677148203 - 2⁶ = 677148139 is a prime.

It is a super-2 number, since 2×677148203² = 917059377652258418, which contains 22 as substring.

It is a Chen prime.

It is equal to p_35129765 and since 677148203 and 35129765 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (677148209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338574101 + 338574102.

It is an arithmetic number, because the mean of its divisors is an integer number (338574102).

Almost surely, 2^677148203 is an apocalyptic number.

677148203 is a deficient number, since it is larger than the sum of its proper divisors (1).

677148203 is an equidigital number, since it uses as much as digits as its factorization.

677148203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 677148203 is about 26022.0714586675. The cubic root of 677148203 is about 878.1349113727.

Adding to 677148203 its reverse (302841776), we get a palindrome (979989979).

The spelling of 677148203 in words is "six hundred seventy-seven million, one hundred forty-eight thousand, two hundred three".