1972578706 has 32 divisors (see below), whose sum is σ = 3478331520. Its totient is φ = 821270016.

The previous prime is 1972578677. The next prime is 1972578709. The reversal of 1972578706 is 6078752791.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1972578709) 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, 380226 + ... + 385378.

It is an arithmetic number, because the mean of its divisors is an integer number (108697860).

Almost surely, 2^1972578706 is an apocalyptic number.

1972578706 is a deficient number, since it is larger than the sum of its proper divisors (1505752814).

1972578706 is a wasteful number, since it uses less digits than its factorization.

1972578706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The square root of 1972578706 is about 44413.7220462325. The cubic root of 1972578706 is about 1254.1364208661.

The spelling of 1972578706 in words is "one billion, nine hundred seventy-two million, five hundred seventy-eight thousand, seven hundred six".