8620442397 has 24 divisors (see below), whose sum is σ = 14689625600. Its totient is φ = 4767063840.

The previous prime is 8620442381. The next prime is 8620442401. The reversal of 8620442397 is 7932440268.

It is not a de Polignac number, because 8620442397 - 2⁴ = 8620442381 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 (8620442497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2205022 + ... + 2208927.

Almost surely, 2^8620442397 is an apocalyptic number.

It is an amenable number.

8620442397 is a deficient number, since it is larger than the sum of its proper divisors (6069183203).

8620442397 is a wasteful number, since it uses less digits than its factorization.

8620442397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413993 (or 4413990 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 8620442397 is about 92846.3375529697. The cubic root of 8620442397 is about 2050.4216778410.

The spelling of 8620442397 in words is "eight billion, six hundred twenty million, four hundred forty-two thousand, three hundred ninety-seven".