63306497 has 4 divisors (see below), whose sum is σ = 63933396. Its totient is φ = 62679600.

The previous prime is 63306479. The next prime is 63306517. The reversal of 63306497 is 79460336.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43020481 + 20286016 = 6559^2 + 4504^2 .

It is a cyclic number.

It is not a de Polignac number, because 63306497 - 2⁸ = 63306241 is a prime.

It is a super-2 number, since 2×63306497² = 8015425124822018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63306497.

It is not an unprimeable number, because it can be changed into a prime (63306407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313298 + ... + 313499.

It is an arithmetic number, because the mean of its divisors is an integer number (15983349).

Almost surely, 2^63306497 is an apocalyptic number.

It is an amenable number.

63306497 is a deficient number, since it is larger than the sum of its proper divisors (626899).

63306497 is a wasteful number, since it uses less digits than its factorization.

63306497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626898.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 63306497 is about 7956.5380034284. The cubic root of 63306497 is about 398.5499518361.

The spelling of 63306497 in words is "sixty-three million, three hundred six thousand, four hundred ninety-seven".