37650409 has 2 divisors, whose sum is σ = 37650410. Its totient is φ = 37650408.

The previous prime is 37650313. The next prime is 37650421. The reversal of 37650409 is 90405673.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21650409 + 16000000 = 4653^2 + 4000^2 .

It is a cyclic number.

It is not a de Polignac number, because 37650409 - 2⁷ = 37650281 is a prime.

It is not a weakly prime, because it can be changed into another prime (37660409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18825204 + 18825205.

It is an arithmetic number, because the mean of its divisors is an integer number (18825205).

Almost surely, 2^37650409 is an apocalyptic number.

It is an amenable number.

37650409 is a deficient number, since it is larger than the sum of its proper divisors (1).

37650409 is an equidigital number, since it uses as much as digits as its factorization.

37650409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 37650409 is about 6135.9929106869. The cubic root of 37650409 is about 335.1633835835.

The spelling of 37650409 in words is "thirty-seven million, six hundred fifty thousand, four hundred nine".