421693498 has 8 divisors (see below), whose sum is σ = 632639808. Its totient is φ = 210813564.

The previous prime is 421693463. The next prime is 421693529. The reversal of 421693498 is 894396124.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4815 + ... + 29437.

It is an arithmetic number, because the mean of its divisors is an integer number (79079976).

Almost surely, 2^421693498 is an apocalyptic number.

421693498 is a deficient number, since it is larger than the sum of its proper divisors (210946310).

421693498 is a wasteful number, since it uses less digits than its factorization.

421693498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33188.

The product of its digits is 373248, while the sum is 46.

The square root of 421693498 is about 20535.1770871351. The cubic root of 421693498 is about 749.8924278310.

The spelling of 421693498 in words is "four hundred twenty-one million, six hundred ninety-three thousand, four hundred ninety-eight".