620704743 has 4 divisors (see below), whose sum is σ = 827606328. Its totient is φ = 413803160.

The previous prime is 620704739. The next prime is 620704757. The reversal of 620704743 is 347407026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620704743 - 2² = 620704739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620704943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103450788 + ... + 103450793.

It is an arithmetic number, because the mean of its divisors is an integer number (206901582).

Almost surely, 2^620704743 is an apocalyptic number.

620704743 is a deficient number, since it is larger than the sum of its proper divisors (206901585).

620704743 is a wasteful number, since it uses less digits than its factorization.

620704743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206901584.

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 620704743 is about 24913.9467567866. The cubic root of 620704743 is about 853.0248596973.

The spelling of 620704743 in words is "six hundred twenty million, seven hundred four thousand, seven hundred forty-three".