37472209 has 2 divisors, whose sum is σ = 37472210. Its totient is φ = 37472208.

The previous prime is 37472203. The next prime is 37472213. The reversal of 37472209 is 90227473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 15429184 = 4695^2 + 3928^2 .

It is a cyclic number.

It is not a de Polignac number, because 37472209 - 2⁵ = 37472177 is a prime.

It is not a weakly prime, because it can be changed into another prime (37472203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18736104 + 18736105.

It is an arithmetic number, because the mean of its divisors is an integer number (18736105).

Almost surely, 2^37472209 is an apocalyptic number.

It is an amenable number.

37472209 is a deficient number, since it is larger than the sum of its proper divisors (1).

37472209 is an equidigital number, since it uses as much as digits as its factorization.

37472209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 37472209 is about 6121.4548107456. The cubic root of 37472209 is about 334.6337692241.

The spelling of 37472209 in words is "thirty-seven million, four hundred seventy-two thousand, two hundred nine".