498638379 has 8 divisors (see below), whose sum is σ = 686298112. Its totient is φ = 321702120.

The previous prime is 498638341. The next prime is 498638389. The reversal of 498638379 is 973836894.

It is a happy number.

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-498638379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (498638389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2680759 + ... + 2680944.

It is an arithmetic number, because the mean of its divisors is an integer number (85787264).

Almost surely, 2^498638379 is an apocalyptic number.

498638379 is a deficient number, since it is larger than the sum of its proper divisors (187659733).

498638379 is a wasteful number, since it uses less digits than its factorization.

498638379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361737.

The product of its digits is 7838208, while the sum is 57.

The square root of 498638379 is about 22330.2122470880. The cubic root of 498638379 is about 792.9793914435.

It can be divided in two parts, 4986 and 38379, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 498638379 in words is "four hundred ninety-eight million, six hundred thirty-eight thousand, three hundred seventy-nine".