620345097 has 6 divisors (see below), whose sum is σ = 896054042. Its totient is φ = 413563392.

The previous prime is 620345093. The next prime is 620345149. The reversal of 620345097 is 790543026.

It can be written as a sum of positive squares in only one way, i.e., 583512336 + 36832761 = 24156^2 + 6069^2 .

It is not a de Polignac number, because 620345097 - 2² = 620345093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620345093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34463608 + ... + 34463625.

Almost surely, 2^620345097 is an apocalyptic number.

It is an amenable number.

620345097 is a deficient number, since it is larger than the sum of its proper divisors (275708945).

620345097 is a wasteful number, since it uses less digits than its factorization.

620345097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68927239 (or 68927236 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 620345097 is about 24906.7279464806. The cubic root of 620345097 is about 852.8600759019.

The spelling of 620345097 in words is "six hundred twenty million, three hundred forty-five thousand, ninety-seven".