8421123337 has 16 divisors (see below), whose sum is σ = 9306086400. Its totient is φ = 7556547600.

The previous prime is 8421123317. The next prime is 8421123353. The reversal of 8421123337 is 7333211248.

It is a cyclic number.

It is not a de Polignac number, because 8421123337 - 2¹⁵ = 8421090569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8421123317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340414 + ... + 364312.

It is an arithmetic number, because the mean of its divisors is an integer number (581630400).

Almost surely, 2^8421123337 is an apocalyptic number.

It is an amenable number.

8421123337 is a deficient number, since it is larger than the sum of its proper divisors (884963063).

8421123337 is a wasteful number, since it uses less digits than its factorization.

8421123337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24324.

The product of its digits is 24192, while the sum is 34.

The square root of 8421123337 is about 91766.6787946475. The cubic root of 8421123337 is about 2034.4952304066.

The spelling of 8421123337 in words is "eight billion, four hundred twenty-one million, one hundred twenty-three thousand, three hundred thirty-seven".