620502986 has 16 divisors (see below), whose sum is σ = 962231424. Its totient is φ = 299908224.

The previous prime is 620502983. The next prime is 620503019. The reversal of 620502986 is 689205026.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (620502983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28850 + ... + 45533.

It is an arithmetic number, because the mean of its divisors is an integer number (60139464).

Almost surely, 2^620502986 is an apocalyptic number.

620502986 is a deficient number, since it is larger than the sum of its proper divisors (341728438).

620502986 is a wasteful number, since it uses less digits than its factorization.

620502986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74525.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 620502986 is about 24909.8973502502. The cubic root of 620502986 is about 852.9324258474.

The spelling of 620502986 in words is "six hundred twenty million, five hundred two thousand, nine hundred eighty-six".