621622345 has 8 divisors (see below), whose sum is σ = 746147520. Its totient is φ = 497164080.

The previous prime is 621622327. The next prime is 621622349. The reversal of 621622345 is 543226126.

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

It is not a de Polignac number, because 621622345 - 2¹¹ = 621620297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621622349) 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, 6700 + ... + 35890.

It is an arithmetic number, because the mean of its divisors is an integer number (93268440).

Almost surely, 2^621622345 is an apocalyptic number.

It is an amenable number.

621622345 is a deficient number, since it is larger than the sum of its proper divisors (124525175).

621622345 is a wasteful number, since it uses less digits than its factorization.

621622345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33455.

The product of its digits is 17280, while the sum is 31.

The square root of 621622345 is about 24932.3553841188. The cubic root of 621622345 is about 853.4450014420.

It can be divided in two parts, 6216 and 22345, that added together give a 4-th power (28561 = 13⁴).

The spelling of 621622345 in words is "six hundred twenty-one million, six hundred twenty-two thousand, three hundred forty-five".