4227987437 has 2 divisors, whose sum is σ = 4227987438. Its totient is φ = 4227987436.

The previous prime is 4227987433. The next prime is 4227987461. The reversal of 4227987437 is 7347897224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3748990441 + 478996996 = 61229^2 + 21886^2 .

It is a cyclic number.

It is not a de Polignac number, because 4227987437 - 2² = 4227987433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4227987433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2113993718 + 2113993719.

It is an arithmetic number, because the mean of its divisors is an integer number (2113993719).

Almost surely, 2^4227987437 is an apocalyptic number.

It is an amenable number.

4227987437 is a deficient number, since it is larger than the sum of its proper divisors (1).

4227987437 is an equidigital number, since it uses as much as digits as its factorization.

4227987437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 53.

The square root of 4227987437 is about 65022.9762237934. The cubic root of 4227987437 is about 1617.0045032636.

The spelling of 4227987437 in words is "four billion, two hundred twenty-seven million, nine hundred eighty-seven thousand, four hundred thirty-seven".