10621689 has 8 divisors (see below), whose sum is σ = 15251712. Its totient is φ = 6536400.

The previous prime is 10621687. The next prime is 10621691. The reversal of 10621689 is 98612601.

It is an interprime number because it is at equal distance from previous prime (10621687) and next prime (10621691).

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

It is not a de Polignac number, because 10621689 - 2¹ = 10621687 is a prime.

It is a super-2 number, since 2×10621689² = 225640554425442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10621687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136137 + ... + 136214.

It is an arithmetic number, because the mean of its divisors is an integer number (1906464).

Almost surely, 2^10621689 is an apocalyptic number.

It is an amenable number.

10621689 is a deficient number, since it is larger than the sum of its proper divisors (4630023).

10621689 is a wasteful number, since it uses less digits than its factorization.

10621689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272367.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 10621689 is about 3259.0932788124. The cubic root of 10621689 is about 219.8186453091.

The spelling of 10621689 in words is "ten million, six hundred twenty-one thousand, six hundred eighty-nine".