620467767 has 12 divisors (see below), whose sum is σ = 913141944. Its totient is φ = 405840240.

The previous prime is 620467741. The next prime is 620467811. The reversal of 620467767 is 767764026.

It is not a de Polignac number, because 620467767 - 2¹⁵ = 620434999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620467867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649909 + ... + 650862.

It is an arithmetic number, because the mean of its divisors is an integer number (76095162).

Almost surely, 2^620467767 is an apocalyptic number.

620467767 is a deficient number, since it is larger than the sum of its proper divisors (292674177).

620467767 is a wasteful number, since it uses less digits than its factorization.

620467767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300830 (or 1300827 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The square root of 620467767 is about 24909.1904123759. The cubic root of 620467767 is about 852.9162884040.

The spelling of 620467767 in words is "six hundred twenty million, four hundred sixty-seven thousand, seven hundred sixty-seven".