11458991 has 8 divisors (see below), whose sum is σ = 12065760. Its totient is φ = 10861312.

The previous prime is 11458987. The next prime is 11458999. The reversal of 11458991 is 19985411.

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 11458991 - 2² = 11458987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11458999) 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, 395 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (1508220).

Almost surely, 2^11458991 is an apocalyptic number.

11458991 is a deficient number, since it is larger than the sum of its proper divisors (606769).

11458991 is a wasteful number, since it uses less digits than its factorization.

11458991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545.

The product of its digits is 12960, while the sum is 38.

The square root of 11458991 is about 3385.1131443424. The cubic root of 11458991 is about 225.4492489069.

The spelling of 11458991 in words is "eleven million, four hundred fifty-eight thousand, nine hundred ninety-one".