828492377 has 2 divisors, whose sum is σ = 828492378. Its totient is φ = 828492376.

The previous prime is 828492349. The next prime is 828492389. The reversal of 828492377 is 773294828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 807184921 + 21307456 = 28411^2 + 4616^2 .

It is a cyclic number.

It is not a de Polignac number, because 828492377 - 2⁸ = 828492121 is a prime.

It is a super-2 number, since 2×828492377² = 1372799237494220258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (828492317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414246188 + 414246189.

It is an arithmetic number, because the mean of its divisors is an integer number (414246189).

Almost surely, 2^828492377 is an apocalyptic number.

It is an amenable number.

828492377 is a deficient number, since it is larger than the sum of its proper divisors (1).

828492377 is an equidigital number, since it uses as much as digits as its factorization.

828492377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The square root of 828492377 is about 28783.5435101379. The cubic root of 828492377 is about 939.2102832323.

The spelling of 828492377 in words is "eight hundred twenty-eight million, four hundred ninety-two thousand, three hundred seventy-seven".