1930954817 has 16 divisors (see below), whose sum is σ = 2143791360. Its totient is φ = 1724409600.

The previous prime is 1930954813. The next prime is 1930954829. The reversal of 1930954817 is 7184590391.

It is a cyclic number.

It is not a de Polignac number, because 1930954817 - 2² = 1930954813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1930954813) 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, 738809 + ... + 741417.

It is an arithmetic number, because the mean of its divisors is an integer number (133986960).

Almost surely, 2^1930954817 is an apocalyptic number.

It is an amenable number.

1930954817 is a deficient number, since it is larger than the sum of its proper divisors (212836543).

1930954817 is a wasteful number, since it uses less digits than its factorization.

1930954817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1930954817 is about 43942.6309749428. The cubic root of 1930954817 is about 1245.2523516576.

The spelling of 1930954817 in words is "one billion, nine hundred thirty million, nine hundred fifty-four thousand, eight hundred seventeen".