37420913 has 2 divisors, whose sum is σ = 37420914. Its totient is φ = 37420912.

The previous prime is 37420897. The next prime is 37420973. The reversal of 37420913 is 31902473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18905104 + 18515809 = 4348^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 37420913 - 2⁴ = 37420897 is a prime.

It is not a weakly prime, because it can be changed into another prime (37420973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18710456 + 18710457.

It is an arithmetic number, because the mean of its divisors is an integer number (18710457).

Almost surely, 2^37420913 is an apocalyptic number.

It is an amenable number.

37420913 is a deficient number, since it is larger than the sum of its proper divisors (1).

37420913 is an equidigital number, since it uses as much as digits as its factorization.

37420913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 37420913 is about 6117.2635221968. The cubic root of 37420913 is about 334.4810052349.

The spelling of 37420913 in words is "thirty-seven million, four hundred twenty thousand, nine hundred thirteen".