38121963 has 8 divisors (see below), whose sum is σ = 55450176. Its totient is φ = 23104200.

The previous prime is 38121947. The next prime is 38121997. The reversal of 38121963 is 36912183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38121963 - 2⁴ = 38121947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1155211 = 38121963 / (3 + 8 + 1 + 2 + 1 + 9 + 6 + 3).

It is not an unprimeable number, because it can be changed into a prime (38120963) 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, 577573 + ... + 577638.

It is an arithmetic number, because the mean of its divisors is an integer number (6931272).

Almost surely, 2^38121963 is an apocalyptic number.

38121963 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

38121963 is a deficient number, since it is larger than the sum of its proper divisors (17328213).

38121963 is a wasteful number, since it uses less digits than its factorization.

38121963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155225.

The product of its digits is 7776, while the sum is 33.

The square root of 38121963 is about 6174.2985836449. The cubic root of 38121963 is about 336.5568377931.

It can be divided in two parts, 3812 and 1963, that added together give a palindrome (5775).

The spelling of 38121963 in words is "thirty-eight million, one hundred twenty-one thousand, nine hundred sixty-three".