491877029 has 8 divisors (see below), whose sum is σ = 563713920. Its totient is φ = 420432336.

The previous prime is 491877019. The next prime is 491877037. The reversal of 491877029 is 920778194.

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

It is a cyclic number.

It is not a de Polignac number, because 491877029 - 2⁴ = 491877013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491877019) 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, 95354 + ... + 100379.

It is an arithmetic number, because the mean of its divisors is an integer number (70464240).

Almost surely, 2^491877029 is an apocalyptic number.

It is an amenable number.

491877029 is a deficient number, since it is larger than the sum of its proper divisors (71836891).

491877029 is a wasteful number, since it uses less digits than its factorization.

491877029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196099.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 491877029 is about 22178.3008591731. The cubic root of 491877029 is about 789.3789002707.

The spelling of 491877029 in words is "four hundred ninety-one million, eight hundred seventy-seven thousand, twenty-nine".