90860867 has 2 divisors, whose sum is σ = 90860868. Its totient is φ = 90860866.

The previous prime is 90860851. The next prime is 90860893. The reversal of 90860867 is 76806809.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90860867 - 2⁴ = 90860851 is a prime.

It is not a weakly prime, because it can be changed into another prime (90860897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45430433 + 45430434.

It is an arithmetic number, because the mean of its divisors is an integer number (45430434).

Almost surely, 2^90860867 is an apocalyptic number.

90860867 is a deficient number, since it is larger than the sum of its proper divisors (1).

90860867 is an equidigital number, since it uses as much as digits as its factorization.

90860867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 90860867 is about 9532.0966738698. The cubic root of 90860867 is about 449.5647924030.

The spelling of 90860867 in words is "ninety million, eight hundred sixty thousand, eight hundred sixty-seven".