620459951 has 2 divisors, whose sum is σ = 620459952. Its totient is φ = 620459950.

The previous prime is 620459933. The next prime is 620460037. The reversal of 620459951 is 159954026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620459951 - 2⁶ = 620459887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620459899 and 620459908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620459921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310229975 + 310229976.

It is an arithmetic number, because the mean of its divisors is an integer number (310229976).

Almost surely, 2^620459951 is an apocalyptic number.

620459951 is a deficient number, since it is larger than the sum of its proper divisors (1).

620459951 is an equidigital number, since it uses as much as digits as its factorization.

620459951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 620459951 is about 24909.0335219976. The cubic root of 620459951 is about 852.9127070083.

The spelling of 620459951 in words is "six hundred twenty million, four hundred fifty-nine thousand, nine hundred fifty-one".