10597821 has 12 divisors (see below), whose sum is σ = 15301728. Its totient is φ = 6521424.

The previous prime is 10597781. The next prime is 10597837. The reversal of 10597821 is 12879501.

It is not a de Polignac number, because 10597821 - 2⁷ = 10597693 is a prime.

It is a super-2 number, since 2×10597821² = 224627619896082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10597841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9945 + ... + 10958.

It is an arithmetic number, because the mean of its divisors is an integer number (1275144).

Almost surely, 2^10597821 is an apocalyptic number.

It is an amenable number.

10597821 is a deficient number, since it is larger than the sum of its proper divisors (4703907).

10597821 is a wasteful number, since it uses less digits than its factorization.

10597821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20932 (or 20919 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 10597821 is about 3255.4294647558. The cubic root of 10597821 is about 219.6538703145.

The spelling of 10597821 in words is "ten million, five hundred ninety-seven thousand, eight hundred twenty-one".