11671534 has 32 divisors (see below), whose sum is σ = 21229056. Its totient is φ = 4704480.

The previous prime is 11671523. The next prime is 11671547. The reversal of 11671534 is 43517611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21304 + ... + 21844.

It is an arithmetic number, because the mean of its divisors is an integer number (663408).

Almost surely, 2^11671534 is an apocalyptic number.

11671534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11671534 is a deficient number, since it is larger than the sum of its proper divisors (9557522).

11671534 is a wasteful number, since it uses less digits than its factorization.

11671534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its digits is 2520, while the sum is 28.

The square root of 11671534 is about 3416.3626856644. The cubic root of 11671534 is about 226.8346068935.

It can be divided in two parts, 1167 and 1534, that added together give a triangular number (2701 = T₇₃).

The spelling of 11671534 in words is "eleven million, six hundred seventy-one thousand, five hundred thirty-four".