491648367 has 16 divisors (see below), whose sum is σ = 749953280. Its totient is φ = 280651392.

The previous prime is 491648359. The next prime is 491648387. The reversal of 491648367 is 763846194.

It is not a de Polignac number, because 491648367 - 2³ = 491648359 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 (491648317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9588 + ... + 32790.

It is an arithmetic number, because the mean of its divisors is an integer number (46872080).

Almost surely, 2^491648367 is an apocalyptic number.

491648367 is a deficient number, since it is larger than the sum of its proper divisors (258304913).

491648367 is a wasteful number, since it uses less digits than its factorization.

491648367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24222.

The product of its digits is 870912, while the sum is 48.

The square root of 491648367 is about 22173.1451760908. The cubic root of 491648367 is about 789.2565601160.

The spelling of 491648367 in words is "four hundred ninety-one million, six hundred forty-eight thousand, three hundred sixty-seven".