10921471 has 4 divisors (see below), whose sum is σ = 11914344. Its totient is φ = 9928600.

The previous prime is 10921459. The next prime is 10921499. The reversal of 10921471 is 17412901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17412901 = 11 ⋅1582991.

It is not a de Polignac number, because 10921471 - 2⁵ = 10921439 is a prime.

It is a super-3 number, since 3×10921471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10921411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496420 + ... + 496441.

It is an arithmetic number, because the mean of its divisors is an integer number (2978586).

Almost surely, 2^10921471 is an apocalyptic number.

10921471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10921471 is a deficient number, since it is larger than the sum of its proper divisors (992873).

10921471 is an equidigital number, since it uses as much as digits as its factorization.

10921471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992872.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 10921471 is about 3304.7648933018. The cubic root of 10921471 is about 221.8675115108.

The spelling of 10921471 in words is "ten million, nine hundred twenty-one thousand, four hundred seventy-one".