37811401 has 2 divisors, whose sum is σ = 37811402. Its totient is φ = 37811400.

The previous prime is 37811377. The next prime is 37811407. The reversal of 37811401 is 10411873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37503376 + 308025 = 6124^2 + 555^2 .

It is an emirp because it is prime and its reverse (10411873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37811401 - 2⁵ = 37811369 is a prime.

It is not a weakly prime, because it can be changed into another prime (37811407) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18905700 + 18905701.

It is an arithmetic number, because the mean of its divisors is an integer number (18905701).

Almost surely, 2^37811401 is an apocalyptic number.

It is an amenable number.

37811401 is a deficient number, since it is larger than the sum of its proper divisors (1).

37811401 is an equidigital number, since it uses as much as digits as its factorization.

37811401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 37811401 is about 6149.0975760676. The cubic root of 37811401 is about 335.6404204301.

The spelling of 37811401 in words is "thirty-seven million, eight hundred eleven thousand, four hundred one".