1972905935 has 32 divisors (see below), whose sum is σ = 3178732032. Its totient is φ = 1135255680.

The previous prime is 1972905929. The next prime is 1972905941. The reversal of 1972905935 is 5395092791.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1972905929) and next prime (1972905941).

It is not a de Polignac number, because 1972905935 - 2¹⁴ = 1972889551 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192089 + ... + 202098.

It is an arithmetic number, because the mean of its divisors is an integer number (99335376).

Almost surely, 2^1972905935 is an apocalyptic number.

1972905935 is a deficient number, since it is larger than the sum of its proper divisors (1205826097).

1972905935 is a wasteful number, since it uses less digits than its factorization.

1972905935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394223.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 1972905935 is about 44417.4057662084. The cubic root of 1972905935 is about 1254.2057661542.

The spelling of 1972905935 in words is "one billion, nine hundred seventy-two million, nine hundred five thousand, nine hundred thirty-five".