8420958345 has 16 divisors (see below), whose sum is σ = 13502644992. Its totient is φ = 4481473920.

The previous prime is 8420958341. The next prime is 8420958349. The reversal of 8420958345 is 5438590248.

It is an interprime number because it is at equal distance from previous prime (8420958341) and next prime (8420958349).

It is not a de Polignac number, because 8420958345 - 2² = 8420958341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8420958294 and 8420958303.

It is not an unprimeable number, because it can be changed into a prime (8420958341) 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, 599316 + ... + 613205.

It is an arithmetic number, because the mean of its divisors is an integer number (843915312).

Almost surely, 2^8420958345 is an apocalyptic number.

It is an amenable number.

8420958345 is a deficient number, since it is larger than the sum of its proper divisors (5081686647).

8420958345 is a wasteful number, since it uses less digits than its factorization.

8420958345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212992.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The square root of 8420958345 is about 91765.7798147000. The cubic root of 8420958345 is about 2034.4819432786.

The spelling of 8420958345 in words is "eight billion, four hundred twenty million, nine hundred fifty-eight thousand, three hundred forty-five".