1091463 has 8 divisors (see below), whose sum is σ = 1494768. Its totient is φ = 707904.

The previous prime is 1091459. The next prime is 1091471. The reversal of 1091463 is 3641901.

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

It is not a de Polignac number, because 1091463 - 2² = 1091459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091413) 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, 4806 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (186846).

2^1091463 is an apocalyptic number.

1091463 is a deficient number, since it is larger than the sum of its proper divisors (403305).

1091463 is an equidigital number, since it uses as much as digits as its factorization.

1091463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1091463 is about 1044.7310658729. The cubic root of 1091463 is about 102.9602699693.

The spelling of 1091463 in words is "one million, ninety-one thousand, four hundred sixty-three".