38526921 has 28 divisors (see below), whose sum is σ = 59218740. Its totient is φ = 25038720.

The previous prime is 38526911. The next prime is 38526923. The reversal of 38526921 is 12962583.

It can be written as a sum of positive squares in 2 ways, for example, as 14907321 + 23619600 = 3861^2 + 4860^2 .

It is not a de Polignac number, because 38526921 - 2¹⁷ = 38395849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38526923) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 29245 + ... + 30533.

It is an arithmetic number, because the mean of its divisors is an integer number (2114955).

Almost surely, 2^38526921 is an apocalyptic number.

It is an amenable number.

38526921 is a deficient number, since it is larger than the sum of its proper divisors (20691819).

38526921 is an equidigital number, since it uses as much as digits as its factorization.

38526921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1333 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 38526921 is about 6207.0057999006. The cubic root of 38526921 is about 337.7443563720.

The spelling of 38526921 in words is "thirty-eight million, five hundred twenty-six thousand, nine hundred twenty-one".