1421820695 has 8 divisors (see below), whose sum is σ = 1706717040. Its totient is φ = 1137101760.

The previous prime is 1421820679. The next prime is 1421820709. The reversal of 1421820695 is 5960281241.

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

It is not a de Polignac number, because 1421820695 - 2⁴ = 1421820679 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 26030 + ... + 59339.

It is an arithmetic number, because the mean of its divisors is an integer number (213339630).

Almost surely, 2^1421820695 is an apocalyptic number.

1421820695 is a deficient number, since it is larger than the sum of its proper divisors (284896345).

1421820695 is an equidigital number, since it uses as much as digits as its factorization.

1421820695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88705.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1421820695 is about 37707.0377383321. The cubic root of 1421820695 is about 1124.4710454906.

The spelling of 1421820695 in words is "one billion, four hundred twenty-one million, eight hundred twenty thousand, six hundred ninety-five".