620745467 has 4 divisors (see below), whose sum is σ = 620993256. Its totient is φ = 620497680.

The previous prime is 620745451. The next prime is 620745469. The reversal of 620745467 is 764547026.

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 620745467 - 2⁴ = 620745451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620745469) 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, 120098 + ... + 125159.

It is an arithmetic number, because the mean of its divisors is an integer number (155248314).

Almost surely, 2^620745467 is an apocalyptic number.

620745467 is a deficient number, since it is larger than the sum of its proper divisors (247789).

620745467 is a wasteful number, since it uses less digits than its factorization.

620745467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247788.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 620745467 is about 24914.7640366109. The cubic root of 620745467 is about 853.0435147423.

The spelling of 620745467 in words is "six hundred twenty million, seven hundred forty-five thousand, four hundred sixty-seven".