37282813 has 2 divisors, whose sum is σ = 37282814. Its totient is φ = 37282812.

The previous prime is 37282811. The next prime is 37282829. The reversal of 37282813 is 31828273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18852964 + 18429849 = 4342^2 + 4293^2 .

It is a cyclic number.

It is not a de Polignac number, because 37282813 - 2¹ = 37282811 is a prime.

Together with 37282811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37282811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18641406 + 18641407.

It is an arithmetic number, because the mean of its divisors is an integer number (18641407).

Almost surely, 2^37282813 is an apocalyptic number.

It is an amenable number.

37282813 is a deficient number, since it is larger than the sum of its proper divisors (1).

37282813 is an equidigital number, since it uses as much as digits as its factorization.

37282813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 37282813 is about 6105.9653618408. The cubic root of 37282813 is about 334.0690362513.

The spelling of 37282813 in words is "thirty-seven million, two hundred eighty-two thousand, eight hundred thirteen".