1677247057 has 2 divisors, whose sum is σ = 1677247058. Its totient is φ = 1677247056.

The previous prime is 1677247031. The next prime is 1677247127. The reversal of 1677247057 is 7507427761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1536326416 + 140920641 = 39196^2 + 11871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1677247057 is a prime.

It is a super-2 number, since 2×1677247057² = 5626315380430322498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1677246998 and 1677247016.

It is not a weakly prime, because it can be changed into another prime (1677247357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838623528 + 838623529.

It is an arithmetic number, because the mean of its divisors is an integer number (838623529).

Almost surely, 2^1677247057 is an apocalyptic number.

It is an amenable number.

1677247057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1677247057 is an equidigital number, since it uses as much as digits as its factorization.

1677247057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576240, while the sum is 46.

The square root of 1677247057 is about 40954.2068290914. The cubic root of 1677247057 is about 1188.1346991078.

The spelling of 1677247057 in words is "one billion, six hundred seventy-seven million, two hundred forty-seven thousand, fifty-seven".