791146987 has 8 divisors (see below), whose sum is σ = 816620000. Its totient is φ = 765889344.

The previous prime is 791146973. The next prime is 791147009. The reversal of 791146987 is 789641197.

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

It is a de Polignac number, because none of the positive numbers 2^k-791146987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791146687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46362 + ... + 61087.

It is an arithmetic number, because the mean of its divisors is an integer number (102077500).

Almost surely, 2^791146987 is an apocalyptic number.

791146987 is a deficient number, since it is larger than the sum of its proper divisors (25473013).

791146987 is a wasteful number, since it uses less digits than its factorization.

791146987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107685.

The product of its digits is 762048, while the sum is 52.

The square root of 791146987 is about 28127.3352274971. The cubic root of 791146987 is about 924.8807197544.

The spelling of 791146987 in words is "seven hundred ninety-one million, one hundred forty-six thousand, nine hundred eighty-seven".