8620691438 has 16 divisors (see below), whose sum is σ = 14080986000. Its totient is φ = 3942675072.

The previous prime is 8620691437. The next prime is 8620691473. The reversal of 8620691438 is 8341960268.

It is a junction number, because it is equal to n+sod(n) for n = 8620691392 and 8620691401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8620691437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3910283 + ... + 3912486.

It is an arithmetic number, because the mean of its divisors is an integer number (880061625).

Almost surely, 2^8620691438 is an apocalyptic number.

8620691438 is a deficient number, since it is larger than the sum of its proper divisors (5460294562).

8620691438 is a wasteful number, since it uses less digits than its factorization.

8620691438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822819.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 8620691438 is about 92847.6786893458. The cubic root of 8620691438 is about 2050.4414229277.

The spelling of 8620691438 in words is "eight billion, six hundred twenty million, six hundred ninety-one thousand, four hundred thirty-eight".