1962745217 has 4 divisors (see below), whose sum is σ = 2078200836. Its totient is φ = 1847289600.

The previous prime is 1962745193. The next prime is 1962745219. The reversal of 1962745217 is 7125472691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1845217936 + 117527281 = 42956^2 + 10841^2 .

It is a cyclic number.

It is not a de Polignac number, because 1962745217 - 2¹⁰ = 1962744193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1962745219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57727784 + ... + 57727817.

It is an arithmetic number, because the mean of its divisors is an integer number (519550209).

Almost surely, 2^1962745217 is an apocalyptic number.

1962745217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1962745217 is a deficient number, since it is larger than the sum of its proper divisors (115455619).

1962745217 is a wasteful number, since it uses less digits than its factorization.

1962745217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115455618.

The product of its digits is 211680, while the sum is 44.

The square root of 1962745217 is about 44302.8804594013. The cubic root of 1962745217 is about 1252.0489525596.

The spelling of 1962745217 in words is "one billion, nine hundred sixty-two million, seven hundred forty-five thousand, two hundred seventeen".