85005407 has 2 divisors, whose sum is σ = 85005408. Its totient is φ = 85005406.

The previous prime is 85005377. The next prime is 85005421. The reversal of 85005407 is 70450058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85005407 - 2²² = 80811103 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85005407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85005307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42502703 + 42502704.

It is an arithmetic number, because the mean of its divisors is an integer number (42502704).

Almost surely, 2^85005407 is an apocalyptic number.

85005407 is a deficient number, since it is larger than the sum of its proper divisors (1).

85005407 is an equidigital number, since it uses as much as digits as its factorization.

85005407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 85005407 is about 9219.8376883761. The cubic root of 85005407 is about 439.6922900213.

The spelling of 85005407 in words is "eighty-five million, five thousand, four hundred seven".