63890269 has 4 divisors (see below), whose sum is σ = 63927360. Its totient is φ = 63853180.

The previous prime is 63890261. The next prime is 63890317. The reversal of 63890269 is 96209836.

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 63890269 - 2³ = 63890261 is a prime.

It is a super-2 number, since 2×63890269² = 8163932945784722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63890261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15829 + ... + 19450.

It is an arithmetic number, because the mean of its divisors is an integer number (15981840).

Almost surely, 2^63890269 is an apocalyptic number.

It is an amenable number.

63890269 is a deficient number, since it is larger than the sum of its proper divisors (37091).

63890269 is a wasteful number, since it uses less digits than its factorization.

63890269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37090.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 63890269 is about 7993.1388703062. The cubic root of 63890269 is about 399.7712629734.

The spelling of 63890269 in words is "sixty-three million, eight hundred ninety thousand, two hundred sixty-nine".