37420687 has 2 divisors, whose sum is σ = 37420688. Its totient is φ = 37420686.

The previous prime is 37420679. The next prime is 37420697. The reversal of 37420687 is 78602473.

It is a weak prime.

It is an emirp because it is prime and its reverse (78602473) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37420687 - 2³ = 37420679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37420697) 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, 18710343 + 18710344.

It is an arithmetic number, because the mean of its divisors is an integer number (18710344).

Almost surely, 2^37420687 is an apocalyptic number.

37420687 is a deficient number, since it is larger than the sum of its proper divisors (1).

37420687 is an equidigital number, since it uses as much as digits as its factorization.

37420687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 37420687 is about 6117.2450498570. The cubic root of 37420687 is about 334.4803318782.

The spelling of 37420687 in words is "thirty-seven million, four hundred twenty thousand, six hundred eighty-seven".