620123029 has 8 divisors (see below), whose sum is σ = 633667968. Its totient is φ = 606592800.

The previous prime is 620123027. The next prime is 620123051. The reversal of 620123029 is 920321026.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 620123029 - 2¹ = 620123027 is a prime.

It is a super-2 number, since 2×620123029² = 769105142192269682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620122994 and 620123012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620123027) 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, 151054 + ... + 155104.

It is an arithmetic number, because the mean of its divisors is an integer number (79208496).

Almost surely, 2^620123029 is an apocalyptic number.

It is an amenable number.

620123029 is a deficient number, since it is larger than the sum of its proper divisors (13544939).

620123029 is a wasteful number, since it uses less digits than its factorization.

620123029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 620123029 is about 24902.2695552032. The cubic root of 620123029 is about 852.7582962441.

The spelling of 620123029 in words is "six hundred twenty million, one hundred twenty-three thousand, twenty-nine".