621116286 has 32 divisors (see below), whose sum is σ = 1425608448. Its totient is φ = 176722560.

The previous prime is 621116281. The next prime is 621116291. The reversal of 621116286 is 682611126.

It is an interprime number because it is at equal distance from previous prime (621116281) and next prime (621116291).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621116281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20560 + ... + 40803.

It is an arithmetic number, because the mean of its divisors is an integer number (44550264).

Almost surely, 2^621116286 is an apocalyptic number.

621116286 is an abundant number, since it is smaller than the sum of its proper divisors (804492162).

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

621116286 is a wasteful number, since it uses less digits than its factorization.

621116286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61616.

The product of its digits is 6912, while the sum is 33.

The square root of 621116286 is about 24922.2046777567. The cubic root of 621116286 is about 853.2133437583.

The spelling of 621116286 in words is "six hundred twenty-one million, one hundred sixteen thousand, two hundred eighty-six".