620761193 has 16 divisors (see below), whose sum is σ = 681112656. Its totient is φ = 562256640.

The previous prime is 620761189. The next prime is 620761199. The reversal of 620761193 is 391167026.

It can be written as a sum of positive squares in 8 ways, for example, as 308072704 + 312688489 = 17552^2 + 17683^2 .

It is a cyclic number.

It is not a de Polignac number, because 620761193 - 2² = 620761189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620761199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485471 + ... + 486747.

It is an arithmetic number, because the mean of its divisors is an integer number (42569541).

Almost surely, 2^620761193 is an apocalyptic number.

It is an amenable number.

620761193 is a deficient number, since it is larger than the sum of its proper divisors (60351463).

620761193 is a wasteful number, since it uses less digits than its factorization.

620761193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 620761193 is about 24915.0796306173. The cubic root of 620761193 is about 853.0507183653.

The spelling of 620761193 in words is "six hundred twenty million, seven hundred sixty-one thousand, one hundred ninety-three".