63626473 has 2 divisors, whose sum is σ = 63626474. Its totient is φ = 63626472.

The previous prime is 63626429. The next prime is 63626501. The reversal of 63626473 is 37462636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39841344 + 23785129 = 6312^2 + 4877^2 .

It is a cyclic number.

It is not a de Polignac number, because 63626473 - 2¹⁷ = 63495401 is a prime.

It is equal to p_3764197 and since 63626473 and 3764197 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (63629473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31813236 + 31813237.

It is an arithmetic number, because the mean of its divisors is an integer number (31813237).

Almost surely, 2^63626473 is an apocalyptic number.

It is an amenable number.

63626473 is a deficient number, since it is larger than the sum of its proper divisors (1).

63626473 is an equidigital number, since it uses as much as digits as its factorization.

63626473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 37.

The square root of 63626473 is about 7976.6203996429. The cubic root of 63626473 is about 399.2202999069.

The spelling of 63626473 in words is "sixty-three million, six hundred twenty-six thousand, four hundred seventy-three".