63445497 has 4 divisors (see below), whose sum is σ = 84594000. Its totient is φ = 42296996.

The previous prime is 63445489. The next prime is 63445531. The reversal of 63445497 is 79454436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63445497 - 2³ = 63445489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63445097) 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, 10574247 + ... + 10574252.

It is an arithmetic number, because the mean of its divisors is an integer number (21148500).

Almost surely, 2^63445497 is an apocalyptic number.

It is an amenable number.

63445497 is a deficient number, since it is larger than the sum of its proper divisors (21148503).

63445497 is a wasteful number, since it uses less digits than its factorization.

63445497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21148502.

The product of its digits is 362880, while the sum is 42.

The square root of 63445497 is about 7965.2681687436. The cubic root of 63445497 is about 398.8414329625.

The spelling of 63445497 in words is "sixty-three million, four hundred forty-five thousand, four hundred ninety-seven".