11801397 has 8 divisors (see below), whose sum is σ = 15855840. Its totient is φ = 7807280.

The previous prime is 11801353. The next prime is 11801401. The reversal of 11801397 is 79310811.

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 11801397 - 2⁷ = 11801269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11801327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14622 + ... + 15407.

It is an arithmetic number, because the mean of its divisors is an integer number (1981980).

Almost surely, 2^11801397 is an apocalyptic number.

It is an amenable number.

11801397 is a deficient number, since it is larger than the sum of its proper divisors (4054443).

11801397 is a wasteful number, since it uses less digits than its factorization.

11801397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30163.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 11801397 is about 3435.3161426570. The cubic root of 11801397 is about 227.6727955017.

The spelling of 11801397 in words is "eleven million, eight hundred one thousand, three hundred ninety-seven".