38623028947 has 4 divisors (see below), whose sum is σ = 38706448480. Its totient is φ = 38539609416.

The previous prime is 38623028911. The next prime is 38623028959. The reversal of 38623028947 is 74982032683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74982032683 = 80803 ⋅927961.

It is a cyclic number.

It is not a de Polignac number, because 38623028947 - 2⁷ = 38623028819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38623028894 and 38623028903.

It is not an unprimeable number, because it can be changed into a prime (38623028747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41709072 + ... + 41709997.

It is an arithmetic number, because the mean of its divisors is an integer number (9676612120).

Almost surely, 2^38623028947 is an apocalyptic number.

38623028947 is a deficient number, since it is larger than the sum of its proper divisors (83419533).

38623028947 is an equidigital number, since it uses as much as digits as its factorization.

38623028947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83419532.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 38623028947 in words is "thirty-eight billion, six hundred twenty-three million, twenty-eight thousand, nine hundred forty-seven".