38996999 has 2 divisors, whose sum is σ = 38997000. Its totient is φ = 38996998.

The previous prime is 38996957. The next prime is 38997019. The reversal of 38996999 is 99969983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38996999 - 2¹² = 38992903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38996939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19498499 + 19498500.

It is an arithmetic number, because the mean of its divisors is an integer number (19498500).

Almost surely, 2^38996999 is an apocalyptic number.

38996999 is a deficient number, since it is larger than the sum of its proper divisors (1).

38996999 is an equidigital number, since it uses as much as digits as its factorization.

38996999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8503056, while the sum is 62.

The square root of 38996999 is about 6244.7577214813. The cubic root of 38996999 is about 339.1124457659.

The spelling of 38996999 in words is "thirty-eight million, nine hundred ninety-six thousand, nine hundred ninety-nine".