61438067 has 2 divisors, whose sum is σ = 61438068. Its totient is φ = 61438066.

The previous prime is 61438033. The next prime is 61438127. The reversal of 61438067 is 76083416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61438067 - 2¹⁰ = 61437043 is a prime.

It is not a weakly prime, because it can be changed into another prime (61438667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30719033 + 30719034.

It is an arithmetic number, because the mean of its divisors is an integer number (30719034).

Almost surely, 2^61438067 is an apocalyptic number.

61438067 is a deficient number, since it is larger than the sum of its proper divisors (1).

61438067 is an equidigital number, since it uses as much as digits as its factorization.

61438067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 61438067 is about 7838.2438721948. The cubic root of 61438067 is about 394.5897936655.

The spelling of 61438067 in words is "sixty-one million, four hundred thirty-eight thousand, sixty-seven".