37880081 has 2 divisors, whose sum is σ = 37880082. Its totient is φ = 37880080.

The previous prime is 37880041. The next prime is 37880083. The reversal of 37880081 is 18008873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 10995856 = 5185^2 + 3316^2 .

It is a cyclic number.

It is not a de Polignac number, because 37880081 - 2¹⁴ = 37863697 is a prime.

It is a super-2 number, since 2×37880081² = 2869801073133122, which contains 22 as substring.

Together with 37880083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (37880083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18940040 + 18940041.

It is an arithmetic number, because the mean of its divisors is an integer number (18940041).

Almost surely, 2^37880081 is an apocalyptic number.

It is an amenable number.

37880081 is a deficient number, since it is larger than the sum of its proper divisors (1).

37880081 is an equidigital number, since it uses as much as digits as its factorization.

37880081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 37880081 is about 6154.6796017340. The cubic root of 37880081 is about 335.8435147401.

The spelling of 37880081 in words is "thirty-seven million, eight hundred eighty thousand, eighty-one".