38878253 has 2 divisors, whose sum is σ = 38878254. Its totient is φ = 38878252.

The previous prime is 38878249. The next prime is 38878261. The reversal of 38878253 is 35287883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38464804 + 413449 = 6202^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 38878253 - 2² = 38878249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38878243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19439126 + 19439127.

It is an arithmetic number, because the mean of its divisors is an integer number (19439127).

Almost surely, 2^38878253 is an apocalyptic number.

It is an amenable number.

38878253 is a deficient number, since it is larger than the sum of its proper divisors (1).

38878253 is an equidigital number, since it uses as much as digits as its factorization.

38878253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 44.

The square root of 38878253 is about 6235.2428180465. The cubic root of 38878253 is about 338.7678962781.

The spelling of 38878253 in words is "thirty-eight million, eight hundred seventy-eight thousand, two hundred fifty-three".