498860021 has 8 divisors (see below), whose sum is σ = 555790464. Its totient is φ = 443859520.

The previous prime is 498860017. The next prime is 498860023. The reversal of 498860021 is 120068894.

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 498860021 - 2² = 498860017 is a prime.

It is a super-2 number, since 2×498860021² = 497722641104240882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498860023) 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, 481940 + ... + 482973.

It is an arithmetic number, because the mean of its divisors is an integer number (69473808).

Almost surely, 2^498860021 is an apocalyptic number.

It is an amenable number.

498860021 is a deficient number, since it is larger than the sum of its proper divisors (56930443).

498860021 is a wasteful number, since it uses less digits than its factorization.

498860021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964971.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 498860021 is about 22335.1745236074. The cubic root of 498860021 is about 793.0968656901.

The spelling of 498860021 in words is "four hundred ninety-eight million, eight hundred sixty thousand, twenty-one".