8420623351 has 16 divisors (see below), whose sum is σ = 9753610240. Its totient is φ = 7120301760.

The previous prime is 8420623331. The next prime is 8420623391. The reversal of 8420623351 is 1533260248.

It is a cyclic number.

It is not a de Polignac number, because 8420623351 - 2⁷ = 8420623223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420623331) 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, 724750 + ... + 736276.

It is an arithmetic number, because the mean of its divisors is an integer number (609600640).

Almost surely, 2^8420623351 is an apocalyptic number.

8420623351 is a deficient number, since it is larger than the sum of its proper divisors (1332986889).

8420623351 is a wasteful number, since it uses less digits than its factorization.

8420623351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 8420623351 is about 91763.9545300877. The cubic root of 8420623351 is about 2034.4549650238.

Adding to 8420623351 its reverse (1533260248), we get a palindrome (9953883599).

The spelling of 8420623351 in words is "eight billion, four hundred twenty million, six hundred twenty-three thousand, three hundred fifty-one".