10506909 has 16 divisors (see below), whose sum is σ = 16058880. Its totient is φ = 5985840.

The previous prime is 10506907. The next prime is 10506917. The reversal of 10506909 is 90960501.

It is not a de Polignac number, because 10506909 - 2¹ = 10506907 is a prime.

It is a super-2 number, since 2×10506909² = 220790273468562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9802 + ... + 10820.

It is an arithmetic number, because the mean of its divisors is an integer number (1003680).

Almost surely, 2^10506909 is an apocalyptic number.

It is an amenable number.

10506909 is a deficient number, since it is larger than the sum of its proper divisors (5551971).

10506909 is a wasteful number, since it uses less digits than its factorization.

10506909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 10506909 is about 3241.4362557360. The cubic root of 10506909 is about 219.0239751905.

The spelling of 10506909 in words is "ten million, five hundred six thousand, nine hundred nine".