619969970 has 16 divisors (see below), whose sum is σ = 1117938240. Its totient is φ = 247545264.

The previous prime is 619969969. The next prime is 619970003. The reversal of 619969970 is 79969916.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49430 + ... + 60689.

It is an arithmetic number, because the mean of its divisors is an integer number (69871140).

Almost surely, 2^619969970 is an apocalyptic number.

619969970 is a deficient number, since it is larger than the sum of its proper divisors (497968270).

619969970 is a wasteful number, since it uses less digits than its factorization.

619969970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110689.

The product of its (nonzero) digits is 1653372, while the sum is 56.

The square root of 619969970 is about 24899.1961717643. The cubic root of 619969970 is about 852.6881310962.

The spelling of 619969970 in words is "six hundred nineteen million, nine hundred sixty-nine thousand, nine hundred seventy".