620246609 has 8 divisors (see below), whose sum is σ = 624835200. Its totient is φ = 615672576.

The previous prime is 620246603. The next prime is 620246629. The reversal of 620246609 is 906642026.

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 620246609 - 2¹⁶ = 620181073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620246603) 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, 90692 + ... + 97290.

It is an arithmetic number, because the mean of its divisors is an integer number (78104400).

Almost surely, 2^620246609 is an apocalyptic number.

It is an amenable number.

620246609 is a deficient number, since it is larger than the sum of its proper divisors (4588591).

620246609 is a wasteful number, since it uses less digits than its factorization.

620246609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 620246609 is about 24904.7507315371. The cubic root of 620246609 is about 852.8149392357.

The spelling of 620246609 in words is "six hundred twenty million, two hundred forty-six thousand, six hundred nine".