38513207 has 2 divisors, whose sum is σ = 38513208. Its totient is φ = 38513206.

The previous prime is 38513159. The next prime is 38513213. The reversal of 38513207 is 70231583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38513207 - 2¹⁸ = 38251063 is a prime.

It is a super-2 number, since 2×38513207² = 2966534226849698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38513207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38513107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19256603 + 19256604.

It is an arithmetic number, because the mean of its divisors is an integer number (19256604).

Almost surely, 2^38513207 is an apocalyptic number.

38513207 is a deficient number, since it is larger than the sum of its proper divisors (1).

38513207 is an equidigital number, since it uses as much as digits as its factorization.

38513207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 38513207 is about 6205.9009821298. The cubic root of 38513207 is about 337.7042772475.

The spelling of 38513207 in words is "thirty-eight million, five hundred thirteen thousand, two hundred seven".