620470690 has 32 divisors (see below), whose sum is σ = 1277498880. Its totient is φ = 212549184.

The previous prime is 620470681. The next prime is 620470699. The reversal of 620470690 is 96074026.

620470690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (620470681) and next prime (620470699).

It is a super-2 number, since 2×620470690² = 769967754298152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620470699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96496 + ... + 102724.

It is an arithmetic number, because the mean of its divisors is an integer number (39921840).

Almost surely, 2^620470690 is an apocalyptic number.

620470690 is an abundant number, since it is smaller than the sum of its proper divisors (657028190).

620470690 is a wasteful number, since it uses less digits than its factorization.

620470690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7666.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 620470690 is about 24909.2490854301. The cubic root of 620470690 is about 852.9176277539.

The spelling of 620470690 in words is "six hundred twenty million, four hundred seventy thousand, six hundred ninety".