19700930 has 16 divisors (see below), whose sum is σ = 35568504. Its totient is φ = 7856640.

The previous prime is 19700921. The next prime is 19700939. The reversal of 19700930 is 3900791.

It is an interprime number because it is at equal distance from previous prime (19700921) and next prime (19700939).

It can be written as a sum of positive squares in 4 ways, for example, as 13315201 + 6385729 = 3649^2 + 2527^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19700893 and 19700902.

It is not an unprimeable number, because it can be changed into a prime (19700939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740 + ... + 6320.

Almost surely, 2^19700930 is an apocalyptic number.

19700930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19700930 is a deficient number, since it is larger than the sum of its proper divisors (15867574).

19700930 is a wasteful number, since it uses less digits than its factorization.

19700930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 19700930 is about 4438.5729688719. The cubic root of 19700930 is about 270.0819595719.

The spelling of 19700930 in words is "nineteen million, seven hundred thousand, nine hundred thirty".