64227437 has 4 divisors (see below), whose sum is σ = 64247040. Its totient is φ = 64207836.

The previous prime is 64227419. The next prime is 64227481. The reversal of 64227437 is 73472246.

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 64227437 - 2⁸ = 64227181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64227397 and 64227406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64227407) 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, 3563 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (16061760).

Almost surely, 2^64227437 is an apocalyptic number.

It is an amenable number.

64227437 is a deficient number, since it is larger than the sum of its proper divisors (19603).

64227437 is a wasteful number, since it uses less digits than its factorization.

64227437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19602.

The product of its digits is 56448, while the sum is 35.

The square root of 64227437 is about 8014.2022060839. The cubic root of 64227437 is about 400.4732669086.

The spelling of 64227437 in words is "sixty-four million, two hundred twenty-seven thousand, four hundred thirty-seven".