38772215 has 4 divisors (see below), whose sum is σ = 46526664. Its totient is φ = 31017768.

The previous prime is 38772193. The next prime is 38772247. The reversal of 38772215 is 51227783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38772215 - 2¹⁴ = 38755831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3877217 + ... + 3877226.

It is an arithmetic number, because the mean of its divisors is an integer number (11631666).

Almost surely, 2^38772215 is an apocalyptic number.

38772215 is a deficient number, since it is larger than the sum of its proper divisors (7754449).

38772215 is an equidigital number, since it uses as much as digits as its factorization.

38772215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754448.

The product of its digits is 23520, while the sum is 35.

The square root of 38772215 is about 6226.7338950689. The cubic root of 38772215 is about 338.4596264395.

Adding to 38772215 its reverse (51227783), we get a palindrome (89999998).

The spelling of 38772215 in words is "thirty-eight million, seven hundred seventy-two thousand, two hundred fifteen".