37268729 has 2 divisors, whose sum is σ = 37268730. Its totient is φ = 37268728.

The previous prime is 37268711. The next prime is 37268761. The reversal of 37268729 is 92786273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26543104 + 10725625 = 5152^2 + 3275^2 .

It is an emirp because it is prime and its reverse (92786273) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37268729 is a prime.

It is a super-2 number, since 2×37268729² = 2777916322550882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 37268729.

It is not a weakly prime, because it can be changed into another prime (37261729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18634364 + 18634365.

It is an arithmetic number, because the mean of its divisors is an integer number (18634365).

Almost surely, 2^37268729 is an apocalyptic number.

It is an amenable number.

37268729 is a deficient number, since it is larger than the sum of its proper divisors (1).

37268729 is an equidigital number, since it uses as much as digits as its factorization.

37268729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 37268729 is about 6104.8119545159. The cubic root of 37268729 is about 334.0269648470.

The spelling of 37268729 in words is "thirty-seven million, two hundred sixty-eight thousand, seven hundred twenty-nine".