620427078 has 12 divisors (see below), whose sum is σ = 1344258708. Its totient is φ = 206809020.

The previous prime is 620427077. The next prime is 620427089. The reversal of 620427078 is 870724026.

620427078 is a `hidden beast` number, since 620 + 4 + 27 + 0 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620427077) 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, 17234068 + ... + 17234103.

It is an arithmetic number, because the mean of its divisors is an integer number (112021559).

Almost surely, 2^620427078 is an apocalyptic number.

620427078 is an abundant number, since it is smaller than the sum of its proper divisors (723831630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620427078 is a wasteful number, since it uses less digits than its factorization.

620427078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34468179 (or 34468176 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 620427078 is about 24908.3736522480. The cubic root of 620427078 is about 852.8976438311.

The spelling of 620427078 in words is "six hundred twenty million, four hundred twenty-seven thousand, seventy-eight".