620843078 has 8 divisors (see below), whose sum is σ = 963377280. Its totient is φ = 299717320.

The previous prime is 620843057. The next prime is 620843081. The reversal of 620843078 is 870348026.

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

It is a super-2 number, since 2×620843078² = 770892255001028168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5352038 + ... + 5352153.

It is an arithmetic number, because the mean of its divisors is an integer number (120422160).

Almost surely, 2^620843078 is an apocalyptic number.

620843078 is a deficient number, since it is larger than the sum of its proper divisors (342534202).

620843078 is a wasteful number, since it uses less digits than its factorization.

620843078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10704222.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 620843078 is about 24916.7228583536. The cubic root of 620843078 is about 853.0882255354.

The spelling of 620843078 in words is "six hundred twenty million, eight hundred forty-three thousand, seventy-eight".