91950539 has 2 divisors, whose sum is σ = 91950540. Its totient is φ = 91950538.

The previous prime is 91950533. The next prime is 91950553. The reversal of 91950539 is 93505919.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91950539 - 2²⁰ = 90901963 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 91950496 and 91950505.

It is not a weakly prime, because it can be changed into another prime (91950533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45975269 + 45975270.

It is an arithmetic number, because the mean of its divisors is an integer number (45975270).

Almost surely, 2^91950539 is an apocalyptic number.

91950539 is a deficient number, since it is larger than the sum of its proper divisors (1).

91950539 is an equidigital number, since it uses as much as digits as its factorization.

91950539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 91950539 is about 9589.0843671333. The cubic root of 91950539 is about 451.3548288158.

The spelling of 91950539 in words is "ninety-one million, nine hundred fifty thousand, five hundred thirty-nine".