620948069 has 8 divisors (see below), whose sum is σ = 751399488. Its totient is φ = 500932800.

The previous prime is 620948059. The next prime is 620948077. The reversal of 620948069 is 960849026.

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 620948069 - 2²⁰ = 619899493 is a prime.

It is a super-2 number, since 2×620948069² = 771153008789657522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620948059) 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 7 ways as a sum of consecutive naturals, for example, 2608907 + ... + 2609144.

It is an arithmetic number, because the mean of its divisors is an integer number (93924936).

Almost surely, 2^620948069 is an apocalyptic number.

It is an amenable number.

620948069 is a deficient number, since it is larger than the sum of its proper divisors (130451419).

620948069 is a wasteful number, since it uses less digits than its factorization.

620948069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218075.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 620948069 is about 24918.8296073471. The cubic root of 620948069 is about 853.1363115121.

The spelling of 620948069 in words is "six hundred twenty million, nine hundred forty-eight thousand, sixty-nine".