37979849 has 2 divisors, whose sum is σ = 37979850. Its totient is φ = 37979848.

The previous prime is 37979839. The next prime is 37979857. The reversal of 37979849 is 94897973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32410249 + 5569600 = 5693^2 + 2360^2 .

It is a cyclic number.

It is not a de Polignac number, because 37979849 - 2¹² = 37975753 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 37979794 and 37979803.

It is not a weakly prime, because it can be changed into another prime (37979839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18989924 + 18989925.

It is an arithmetic number, because the mean of its divisors is an integer number (18989925).

Almost surely, 2^37979849 is an apocalyptic number.

It is an amenable number.

37979849 is a deficient number, since it is larger than the sum of its proper divisors (1).

37979849 is an equidigital number, since it uses as much as digits as its factorization.

37979849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 56.

The square root of 37979849 is about 6162.7793242984. The cubic root of 37979849 is about 336.1381028333.

The spelling of 37979849 in words is "thirty-seven million, nine hundred seventy-nine thousand, eight hundred forty-nine".