10216491 has 8 divisors (see below), whose sum is σ = 13637184. Its totient is φ = 6803400.

The previous prime is 10216457. The next prime is 10216513. The reversal of 10216491 is 19461201.

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

It is not a de Polignac number, because 10216491 - 2¹¹ = 10214443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10216441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (1704648).

Almost surely, 2^10216491 is an apocalyptic number.

10216491 is a deficient number, since it is larger than the sum of its proper divisors (3420693).

10216491 is a wasteful number, since it uses less digits than its factorization.

10216491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 10216491 is about 3196.3246080459. The cubic root of 10216491 is about 216.9871016706.

Adding to 10216491 its reverse (19461201), we get a palindrome (29677692).

The spelling of 10216491 in words is "ten million, two hundred sixteen thousand, four hundred ninety-one".