11157817 has 8 divisors (see below), whose sum is σ = 12197952. Its totient is φ = 10122000.

The previous prime is 11157803. The next prime is 11157823. The reversal of 11157817 is 71875111.

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

It is a cyclic number.

It is not a de Polignac number, because 11157817 - 2⁷ = 11157689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11157827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6988 + ... + 8434.

It is an arithmetic number, because the mean of its divisors is an integer number (1524744).

Almost surely, 2^11157817 is an apocalyptic number.

It is an amenable number.

11157817 is a deficient number, since it is larger than the sum of its proper divisors (1040135).

11157817 is a wasteful number, since it uses less digits than its factorization.

11157817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159.

The product of its digits is 1960, while the sum is 31.

The square root of 11157817 is about 3340.3318697399. The cubic root of 11157817 is about 223.4565442258.

The spelling of 11157817 in words is "eleven million, one hundred fifty-seven thousand, eight hundred seventeen".