1972949695 has 8 divisors (see below), whose sum is σ = 2371405536. Its totient is φ = 1575782496.

The previous prime is 1972949689. The next prime is 1972949711. The reversal of 1972949695 is 5969492791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1972949695 - 2¹⁷ = 1972818623 is a prime.

It is a Duffinian number.

It is a congruent 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, 318787 + ... + 324916.

It is an arithmetic number, because the mean of its divisors is an integer number (296425692).

Almost surely, 2^1972949695 is an apocalyptic number.

1972949695 is a deficient number, since it is larger than the sum of its proper divisors (398455841).

1972949695 is an equidigital number, since it uses as much as digits as its factorization.

1972949695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644321.

The product of its digits is 11022480, while the sum is 61.

The square root of 1972949695 is about 44417.8983631599. The cubic root of 1972949695 is about 1254.2150390475.

The spelling of 1972949695 in words is "one billion, nine hundred seventy-two million, nine hundred forty-nine thousand, six hundred ninety-five".