828881357 has 2 divisors, whose sum is σ = 828881358. Its totient is φ = 828881356.

The previous prime is 828881341. The next prime is 828881369. The reversal of 828881357 is 753188828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 827770441 + 1110916 = 28771^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 828881357 - 2⁴ = 828881341 is a prime.

It is a super-2 number, since 2×828881357² = 1374088607964322898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828881377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414440678 + 414440679.

It is an arithmetic number, because the mean of its divisors is an integer number (414440679).

Almost surely, 2^828881357 is an apocalyptic number.

It is an amenable number.

828881357 is a deficient number, since it is larger than the sum of its proper divisors (1).

828881357 is an equidigital number, since it uses as much as digits as its factorization.

828881357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 50.

The square root of 828881357 is about 28790.2997031986. The cubic root of 828881357 is about 939.3572477130.

The spelling of 828881357 in words is "eight hundred twenty-eight million, eight hundred eighty-one thousand, three hundred fifty-seven".