63428237 has 4 divisors (see below), whose sum is σ = 63454656. Its totient is φ = 63401820.

The previous prime is 63428221. The next prime is 63428269. The reversal of 63428237 is 73282436.

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 63428237 - 2⁴ = 63428221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63428197 and 63428206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63424237) 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, 9203 + ... + 14544.

It is an arithmetic number, because the mean of its divisors is an integer number (15863664).

Almost surely, 2^63428237 is an apocalyptic number.

It is an amenable number.

63428237 is a deficient number, since it is larger than the sum of its proper divisors (26419).

63428237 is a wasteful number, since it uses less digits than its factorization.

63428237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26418.

The product of its digits is 48384, while the sum is 35.

The square root of 63428237 is about 7964.1846412549. The cubic root of 63428237 is about 398.8052621398.

It can be divided in two parts, 6 and 3428237, that added together give a palindrome (3428243).

The spelling of 63428237 in words is "sixty-three million, four hundred twenty-eight thousand, two hundred thirty-seven".