85293787 has 2 divisors, whose sum is σ = 85293788. Its totient is φ = 85293786.

The previous prime is 85293779. The next prime is 85293833. The reversal of 85293787 is 78739258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85293787 - 2³ = 85293779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85293787.

It is not a weakly prime, because it can be changed into another prime (85293737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42646893 + 42646894.

It is an arithmetic number, because the mean of its divisors is an integer number (42646894).

Almost surely, 2^85293787 is an apocalyptic number.

85293787 is a deficient number, since it is larger than the sum of its proper divisors (1).

85293787 is an equidigital number, since it uses as much as digits as its factorization.

85293787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 49.

The square root of 85293787 is about 9235.4635508999. The cubic root of 85293787 is about 440.1889460545.

The spelling of 85293787 in words is "eighty-five million, two hundred ninety-three thousand, seven hundred eighty-seven".