10621705 has 8 divisors (see below), whose sum is σ = 12889800. Its totient is φ = 8401536.

The previous prime is 10621693. The next prime is 10621727. The reversal of 10621705 is 50712601.

It can be written as a sum of positive squares in 4 ways, for example, as 968256 + 9653449 = 984^2 + 3107^2 .

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 10621705 - 2⁵ = 10621673 is a prime.

It is a super-2 number, since 2×10621705² = 225641234214050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11490 + ... + 12379.

It is an arithmetic number, because the mean of its divisors is an integer number (1611225).

Almost surely, 2^10621705 is an apocalyptic number.

It is an amenable number.

10621705 is a deficient number, since it is larger than the sum of its proper divisors (2268095).

10621705 is an equidigital number, since it uses as much as digits as its factorization.

10621705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23963.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 10621705 is about 3259.0957334819. The cubic root of 10621705 is about 219.8187556838.

The spelling of 10621705 in words is "ten million, six hundred twenty-one thousand, seven hundred five".