498611021 has 4 divisors (see below), whose sum is σ = 502417344. Its totient is φ = 494804700.

The previous prime is 498610993. The next prime is 498611023. The reversal of 498611021 is 120116894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 498611021 - 2¹⁰ = 498609997 is a prime.

It is a super-2 number, since 2×498611021² = 497225900525324882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498611023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902965 + ... + 1903226.

It is an arithmetic number, because the mean of its divisors is an integer number (125604336).

Almost surely, 2^498611021 is an apocalyptic number.

It is an amenable number.

498611021 is a deficient number, since it is larger than the sum of its proper divisors (3806323).

498611021 is a wasteful number, since it uses less digits than its factorization.

498611021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806322.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 498611021 is about 22329.5996605403. The cubic root of 498611021 is about 792.9648887980.

The spelling of 498611021 in words is "four hundred ninety-eight million, six hundred eleven thousand, twenty-one".