63438495 has 16 divisors (see below), whose sum is σ = 102072960. Its totient is φ = 33643424.

The previous prime is 63438491. The next prime is 63438499. The reversal of 63438495 is 59483436.

It is an interprime number because it is at equal distance from previous prime (63438491) and next prime (63438499).

It is a cyclic number.

It is not a de Polignac number, because 63438495 - 2² = 63438491 is a prime.

It is a super-4 number, since 4×63438495⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63438491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9129 + ... + 14498.

It is an arithmetic number, because the mean of its divisors is an integer number (6379560).

Almost surely, 2^63438495 is an apocalyptic number.

63438495 is a deficient number, since it is larger than the sum of its proper divisors (38634465).

63438495 is a wasteful number, since it uses less digits than its factorization.

63438495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23814.

The product of its digits is 311040, while the sum is 42.

The square root of 63438495 is about 7964.8286233917. The cubic root of 63438495 is about 398.8267600512.

The spelling of 63438495 in words is "sixty-three million, four hundred thirty-eight thousand, four hundred ninety-five".