37963949 has 2 divisors, whose sum is σ = 37963950. Its totient is φ = 37963948.

The previous prime is 37963903. The next prime is 37963973. The reversal of 37963949 is 94936973.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35022724 + 2941225 = 5918^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 37963949 - 2⁸ = 37963693 is a prime.

It is a super-2 number, since 2×37963949² = 2882522847349202, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 37963897 and 37963906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37963979) 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, 18981974 + 18981975.

It is an arithmetic number, because the mean of its divisors is an integer number (18981975).

Almost surely, 2^37963949 is an apocalyptic number.

It is an amenable number.

37963949 is a deficient number, since it is larger than the sum of its proper divisors (1).

37963949 is an equidigital number, since it uses as much as digits as its factorization.

37963949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 50.

The square root of 37963949 is about 6161.4891868768. The cubic root of 37963949 is about 336.0911889919.

The spelling of 37963949 in words is "thirty-seven million, nine hundred sixty-three thousand, nine hundred forty-nine".