37394491 has 2 divisors, whose sum is σ = 37394492. Its totient is φ = 37394490.

The previous prime is 37394449. The next prime is 37394551. The reversal of 37394491 is 19449373.

It is a happy number.

37394491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 37394491 - 2¹³ = 37386299 is a prime.

It is not a weakly prime, because it can be changed into another prime (37394411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18697245 + 18697246.

It is an arithmetic number, because the mean of its divisors is an integer number (18697246).

Almost surely, 2^37394491 is an apocalyptic number.

37394491 is a deficient number, since it is larger than the sum of its proper divisors (1).

37394491 is an equidigital number, since it uses as much as digits as its factorization.

37394491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 37394491 is about 6115.1035150682. The cubic root of 37394491 is about 334.4022637216.

It can be divided in two parts, 373 and 94491, that added together give a square (94864 = 308²).

The spelling of 37394491 in words is "thirty-seven million, three hundred ninety-four thousand, four hundred ninety-one".