620547 has 8 divisors (see below), whose sum is σ = 834240. Its totient is φ = 410280.

The previous prime is 620531. The next prime is 620549. The reversal of 620547 is 745026.

It is a happy number.

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

It is not a de Polignac number, because 620547 - 2⁴ = 620531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (104280).

2⁶²⁰⁵⁴⁷ is an apocalyptic number.

620547 is a deficient number, since it is larger than the sum of its proper divisors (213693).

620547 is a wasteful number, since it uses less digits than its factorization.

620547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 620547 is about 787.7480561702. The cubic root of 620547 is about 85.2952592326.

The spelling of 620547 in words is "six hundred twenty thousand, five hundred forty-seven".