11897031 has 8 divisors (see below), whose sum is σ = 15879024. Its totient is φ = 7923200.

The previous prime is 11896999. The next prime is 11897051. The reversal of 11897031 is 13079811.

11897031 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 sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11897031 - 2⁵ = 11896999 is a prime.

It is a super-2 number, since 2×11897031² = 283078693229922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11897031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897051) 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, 3565 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (1984878).

Almost surely, 2^11897031 is an apocalyptic number.

11897031 is a deficient number, since it is larger than the sum of its proper divisors (3981993).

11897031 is a wasteful number, since it uses less digits than its factorization.

11897031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081.

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

The square root of 11897031 is about 3449.2073002358. The cubic root of 11897031 is about 228.2861327598.

The spelling of 11897031 in words is "eleven million, eight hundred ninety-seven thousand, thirty-one".