38998537 has 2 divisors, whose sum is σ = 38998538. Its totient is φ = 38998536.

The previous prime is 38998511. The next prime is 38998573. The reversal of 38998537 is 73589983.

Together with next prime (38998573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36614601 + 2383936 = 6051^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 38998537 - 2¹⁵ = 38965769 is a prime.

It is not a weakly prime, because it can be changed into another prime (38998237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19499268 + 19499269.

It is an arithmetic number, because the mean of its divisors is an integer number (19499269).

Almost surely, 2^38998537 is an apocalyptic number.

It is an amenable number.

38998537 is a deficient number, since it is larger than the sum of its proper divisors (1).

38998537 is an equidigital number, since it uses as much as digits as its factorization.

38998537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The square root of 38998537 is about 6244.8808635554. The cubic root of 38998537 is about 339.1169037849.

The spelling of 38998537 in words is "thirty-eight million, nine hundred ninety-eight thousand, five hundred thirty-seven".