906137987 has 16 divisors (see below), whose sum is σ = 964128000. Its totient is φ = 849229920.

The previous prime is 906137951. The next prime is 906138001. The reversal of 906137987 is 789731609.

It is a cyclic number.

It is not a de Polignac number, because 906137987 - 2¹⁰ = 906136963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906137887) by changing a digit.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936578 + ... + 937544.

It is an arithmetic number, because the mean of its divisors is an integer number (60258000).

Almost surely, 2^906137987 is an apocalyptic number.

906137987 is a deficient number, since it is larger than the sum of its proper divisors (57990013).

906137987 is a wasteful number, since it uses less digits than its factorization.

906137987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 906137987 is about 30102.1259548225. The cubic root of 906137987 is about 967.6792883068.

The spelling of 906137987 in words is "nine hundred six million, one hundred thirty-seven thousand, nine hundred eighty-seven".