1941796487 has 4 divisors (see below), whose sum is σ = 1941920520. Its totient is φ = 1941672456.

The previous prime is 1941796481. The next prime is 1941796499. The reversal of 1941796487 is 7846971491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1941796487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941796481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34448 + ... + 71205.

It is an arithmetic number, because the mean of its divisors is an integer number (485480130).

Almost surely, 2^1941796487 is an apocalyptic number.

1941796487 is a deficient number, since it is larger than the sum of its proper divisors (124033).

1941796487 is a wasteful number, since it uses less digits than its factorization.

1941796487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124032.

The product of its digits is 3048192, while the sum is 56.

The square root of 1941796487 is about 44065.8199401759. The cubic root of 1941796487 is about 1247.5785629028.

The spelling of 1941796487 in words is "one billion, nine hundred forty-one million, seven hundred ninety-six thousand, four hundred eighty-seven".