11907538 has 8 divisors (see below), whose sum is σ = 17877132. Its totient is φ = 5948496.

The previous prime is 11907529. The next prime is 11907559. The reversal of 11907538 is 83570911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7935489 + 3972049 = 2817^2 + 1993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11907538² = 283578922442888, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1456 + ... + 5092.

Almost surely, 2^11907538 is an apocalyptic number.

11907538 is a deficient number, since it is larger than the sum of its proper divisors (5969594).

11907538 is a wasteful number, since it uses less digits than its factorization.

11907538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 11907538 is about 3450.7300676813. The cubic root of 11907538 is about 228.3533174948.

The spelling of 11907538 in words is "eleven million, nine hundred seven thousand, five hundred thirty-eight".