63493071 has 4 divisors (see below), whose sum is σ = 84657432. Its totient is φ = 42328712.

The previous prime is 63493063. The next prime is 63493081. The reversal of 63493071 is 17039436.

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

It is a cyclic number.

It is not a de Polignac number, because 63493071 - 2³ = 63493063 is a prime.

It is a super-2 number, since 2×63493071² = 8062740130022082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63493021) 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, 10582176 + ... + 10582181.

It is an arithmetic number, because the mean of its divisors is an integer number (21164358).

Almost surely, 2^63493071 is an apocalyptic number.

63493071 is a deficient number, since it is larger than the sum of its proper divisors (21164361).

63493071 is a wasteful number, since it uses less digits than its factorization.

63493071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21164360.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 63493071 is about 7968.2539492664. The cubic root of 63493071 is about 398.9410972024.

The spelling of 63493071 in words is "sixty-three million, four hundred ninety-three thousand, seventy-one".