491627078 has 8 divisors (see below), whose sum is σ = 761229120. Its totient is φ = 237884040.

The previous prime is 491627069. The next prime is 491627089. The reversal of 491627078 is 870726194.

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

It is a Curzon number.

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, 3964673 + ... + 3964796.

It is an arithmetic number, because the mean of its divisors is an integer number (95153640).

Almost surely, 2^491627078 is an apocalyptic number.

491627078 is a deficient number, since it is larger than the sum of its proper divisors (269602042).

491627078 is a wasteful number, since it uses less digits than its factorization.

491627078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929502.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 491627078 is about 22172.6651081912. The cubic root of 491627078 is about 789.2451680137.

The spelling of 491627078 in words is "four hundred ninety-one million, six hundred twenty-seven thousand, seventy-eight".