2391487982 has 8 divisors (see below), whose sum is σ = 3863172936. Its totient is φ = 1103763672.

The previous prime is 2391487961. The next prime is 2391487993. The reversal of 2391487982 is 2897841932.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45990128 + ... + 45990179.

It is an arithmetic number, because the mean of its divisors is an integer number (482896617).

Almost surely, 2^2391487982 is an apocalyptic number.

2391487982 is a deficient number, since it is larger than the sum of its proper divisors (1471684954).

2391487982 is a wasteful number, since it uses less digits than its factorization.

2391487982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91980322.

The product of its digits is 1741824, while the sum is 53.

The square root of 2391487982 is about 48902.8422691361. The cubic root of 2391487982 is about 1337.2811848286.

The spelling of 2391487982 in words is "two billion, three hundred ninety-one million, four hundred eighty-seven thousand, nine hundred eighty-two".