10506691 has 8 divisors (see below), whose sum is σ = 11343024. Its totient is φ = 9674400.

The previous prime is 10506689. The next prime is 10506703. The reversal of 10506691 is 19660501.

10506691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10506691 - 2¹ = 10506689 is a prime.

It is a super-2 number, since 2×10506691² = 220781111538962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10506611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6516 + ... + 7966.

It is an arithmetic number, because the mean of its divisors is an integer number (1417878).

Almost surely, 2^10506691 is an apocalyptic number.

10506691 is a deficient number, since it is larger than the sum of its proper divisors (836333).

10506691 is a wasteful number, since it uses less digits than its factorization.

10506691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 10506691 is about 3241.4026284928. The cubic root of 10506691 is about 219.0224603918.

The spelling of 10506691 in words is "ten million, five hundred six thousand, six hundred ninety-one".