63677641 has 2 divisors, whose sum is σ = 63677642. Its totient is φ = 63677640.

The previous prime is 63677617. The next prime is 63677651. The reversal of 63677641 is 14677636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42250000 + 21427641 = 6500^2 + 4629^2 .

It is a cyclic number.

It is not a de Polignac number, because 63677641 - 2¹⁵ = 63644873 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63677594 and 63677603.

It is not a weakly prime, because it can be changed into another prime (63677611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31838820 + 31838821.

It is an arithmetic number, because the mean of its divisors is an integer number (31838821).

Almost surely, 2^63677641 is an apocalyptic number.

It is an amenable number.

63677641 is a deficient number, since it is larger than the sum of its proper divisors (1).

63677641 is an equidigital number, since it uses as much as digits as its factorization.

63677641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 63677641 is about 7979.8271284533. The cubic root of 63677641 is about 399.3272880307.

The spelling of 63677641 in words is "sixty-three million, six hundred seventy-seven thousand, six hundred forty-one".