11387907 has 12 divisors (see below), whose sum is σ = 16719664. Its totient is φ = 7467120.

The previous prime is 11387899. The next prime is 11387917. The reversal of 11387907 is 70978311.

It is not a de Polignac number, because 11387907 - 2³ = 11387899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11387917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9823 + ... + 10920.

Almost surely, 2^11387907 is an apocalyptic number.

11387907 is a deficient number, since it is larger than the sum of its proper divisors (5331757).

11387907 is a wasteful number, since it uses less digits than its factorization.

11387907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20810 (or 20807 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 11387907 is about 3374.5973093097. The cubic root of 11387907 is about 224.9821022801.

It can be divided in two parts, 1138 and 7907, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 11387907 in words is "eleven million, three hundred eighty-seven thousand, nine hundred seven".