85469039 has 2 divisors, whose sum is σ = 85469040. Its totient is φ = 85469038.

The previous prime is 85468949. The next prime is 85469063. The reversal of 85469039 is 93096458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85469039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85469089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42734519 + 42734520.

It is an arithmetic number, because the mean of its divisors is an integer number (42734520).

Almost surely, 2^85469039 is an apocalyptic number.

85469039 is a deficient number, since it is larger than the sum of its proper divisors (1).

85469039 is an equidigital number, since it uses as much as digits as its factorization.

85469039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 85469039 is about 9244.9466737240. The cubic root of 85469039 is about 440.4902232461.

The spelling of 85469039 in words is "eighty-five million, four hundred sixty-nine thousand, thirty-nine".