85672679 has 2 divisors, whose sum is σ = 85672680. Its totient is φ = 85672678.

The previous prime is 85672667. The next prime is 85672687. The reversal of 85672679 is 97627658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85672679 - 2¹⁶ = 85607143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85672579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42836339 + 42836340.

It is an arithmetic number, because the mean of its divisors is an integer number (42836340).

Almost surely, 2^85672679 is an apocalyptic number.

85672679 is a deficient number, since it is larger than the sum of its proper divisors (1).

85672679 is an equidigital number, since it uses as much as digits as its factorization.

85672679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 50.

The square root of 85672679 is about 9255.9537055886. The cubic root of 85672679 is about 440.8397856251.

The spelling of 85672679 in words is "eighty-five million, six hundred seventy-two thousand, six hundred seventy-nine".