11674581 has 4 divisors (see below), whose sum is σ = 15566112. Its totient is φ = 7783052.

The previous prime is 11674577. The next prime is 11674583. The reversal of 11674581 is 18547611.

It is a happy number.

11674581 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18547611 = 3 ⋅6182537.

It is a cyclic number.

It is not a de Polignac number, because 11674581 - 2² = 11674577 is a prime.

It is a super-2 number, since 2×11674581² = 272591683051122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11674583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1945761 + ... + 1945766.

It is an arithmetic number, because the mean of its divisors is an integer number (3891528).

Almost surely, 2^11674581 is an apocalyptic number.

It is an amenable number.

11674581 is a deficient number, since it is larger than the sum of its proper divisors (3891531).

11674581 is an equidigital number, since it uses as much as digits as its factorization.

11674581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891530.

The product of its digits is 6720, while the sum is 33.

The square root of 11674581 is about 3416.8085986780. The cubic root of 11674581 is about 226.8543445136.

The spelling of 11674581 in words is "eleven million, six hundred seventy-four thousand, five hundred eighty-one".