620307423 has 8 divisors (see below), whose sum is σ = 918974000. Its totient is φ = 413538264.

The previous prime is 620307403. The next prime is 620307433. The reversal of 620307423 is 324703026.

620307423 is a `hidden beast` number, since 620 + 30 + 7 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 620307423 - 2¹⁶ = 620241887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 22974349 = 620307423 / (6 + 2 + 0 + 3 + 0 + 7 + 4 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620307403) 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, 11487148 + ... + 11487201.

It is an arithmetic number, because the mean of its divisors is an integer number (114871750).

Almost surely, 2^620307423 is an apocalyptic number.

620307423 is a deficient number, since it is larger than the sum of its proper divisors (298666577).

620307423 is a wasteful number, since it uses less digits than its factorization.

620307423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22974358 (or 22974352 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 620307423 is about 24905.9716333252. The cubic root of 620307423 is about 852.8428106189.

The spelling of 620307423 in words is "six hundred twenty million, three hundred seven thousand, four hundred twenty-three".