38825831 has 4 divisors (see below), whose sum is σ = 42355464. Its totient is φ = 35296200.

The previous prime is 38825827. The next prime is 38825833. The reversal of 38825831 is 13852883.

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 38825831 - 2² = 38825827 is a prime.

It is a super-2 number, since 2×38825831² = 3014890305681122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38825833) 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, 1764800 + ... + 1764821.

It is an arithmetic number, because the mean of its divisors is an integer number (10588866).

Almost surely, 2^38825831 is an apocalyptic number.

38825831 is a deficient number, since it is larger than the sum of its proper divisors (3529633).

38825831 is a wasteful number, since it uses less digits than its factorization.

38825831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3529632.

The product of its digits is 46080, while the sum is 38.

The square root of 38825831 is about 6231.0377145384. The cubic root of 38825831 is about 338.6155670874.

The spelling of 38825831 in words is "thirty-eight million, eight hundred twenty-five thousand, eight hundred thirty-one".