63457493 has 4 divisors (see below), whose sum is σ = 69226368. Its totient is φ = 57688620.

The previous prime is 63457489. The next prime is 63457517. The reversal of 63457493 is 39475436.

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 not a de Polignac number, because 63457493 - 2² = 63457489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 63457493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63457453) 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, 2884421 + ... + 2884442.

It is an arithmetic number, because the mean of its divisors is an integer number (17306592).

Almost surely, 2^63457493 is an apocalyptic number.

It is an amenable number.

63457493 is a deficient number, since it is larger than the sum of its proper divisors (5768875).

63457493 is a wasteful number, since it uses less digits than its factorization.

63457493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768874.

The product of its digits is 272160, while the sum is 41.

The square root of 63457493 is about 7966.0211523696. The cubic root of 63457493 is about 398.8665684491.

The spelling of 63457493 in words is "sixty-three million, four hundred fifty-seven thousand, four hundred ninety-three".