63161677 has 2 divisors, whose sum is σ = 63161678. Its totient is φ = 63161676.

The previous prime is 63161669. The next prime is 63161713. The reversal of 63161677 is 77616136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63027721 + 133956 = 7939^2 + 366^2 .

It is a cyclic number.

It is not a de Polignac number, because 63161677 - 2³ = 63161669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63161617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31580838 + 31580839.

It is an arithmetic number, because the mean of its divisors is an integer number (31580839).

Almost surely, 2^63161677 is an apocalyptic number.

It is an amenable number.

63161677 is a deficient number, since it is larger than the sum of its proper divisors (1).

63161677 is an equidigital number, since it uses as much as digits as its factorization.

63161677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 63161677 is about 7947.4321009997. The cubic root of 63161677 is about 398.2458120574.

The spelling of 63161677 in words is "sixty-three million, one hundred sixty-one thousand, six hundred seventy-seven".