10249869 has 20 divisors (see below), whose sum is σ = 15954496. Its totient is φ = 5852952.

The previous prime is 10249853. The next prime is 10249879. The reversal of 10249869 is 96894201.

10249869 is digitally balanced in base 2, base 3 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10249869 - 2⁴ = 10249853 is a prime.

It is a super-2 number, since 2×10249869² = 210119629034322, which contains 22 as substring.

It is a Duffinian number.

10249869 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10249879) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6492 + ... + 7914.

Almost surely, 2^10249869 is an apocalyptic number.

It is an amenable number.

10249869 is a deficient number, since it is larger than the sum of its proper divisors (5704627).

10249869 is an frugal number, since it uses more digits than its factorization.

10249869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 10249869 is about 3201.5416598882. The cubic root of 10249869 is about 217.2231488746.

The spelling of 10249869 in words is "ten million, two hundred forty-nine thousand, eight hundred sixty-nine".