10620855 has 32 divisors (see below), whose sum is σ = 21580800. Its totient is φ = 4854816.

The previous prime is 10620853. The next prime is 10620877. The reversal of 10620855 is 55802601.

It is not a de Polignac number, because 10620855 - 2¹ = 10620853 is a prime.

It is a super-2 number, since 2×10620855² = 225605121862050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10620853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4675 + ... + 6564.

It is an arithmetic number, because the mean of its divisors is an integer number (674400).

Almost surely, 2^10620855 is an apocalyptic number.

10620855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10620855 is an abundant number, since it is smaller than the sum of its proper divisors (10959945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10620855 is a wasteful number, since it uses less digits than its factorization.

10620855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11260 (or 11254 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 10620855 is about 3258.9653266029. The cubic root of 10620855 is about 219.8128918754.

The spelling of 10620855 in words is "ten million, six hundred twenty thousand, eight hundred fifty-five".