10638831 has 24 divisors (see below), whose sum is σ = 16627584. Its totient is φ = 6050520.

The previous prime is 10638781. The next prime is 10638833. The reversal of 10638831 is 13883601.

It is not a de Polignac number, because 10638831 - 2¹⁰ = 10637807 is a prime.

It is a super-2 number, since 2×10638831² = 226369450093122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10638833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50316 + ... + 50526.

It is an arithmetic number, because the mean of its divisors is an integer number (692816).

Almost surely, 2^10638831 is an apocalyptic number.

10638831 is a deficient number, since it is larger than the sum of its proper divisors (5988753).

10638831 is an frugal number, since it uses more digits than its factorization.

10638831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 10638831 is about 3261.7220911660. The cubic root of 10638831 is about 219.9368344830.

The spelling of 10638831 in words is "ten million, six hundred thirty-eight thousand, eight hundred thirty-one".