85377079 has 4 divisors (see below), whose sum is σ = 85395640. Its totient is φ = 85358520.

The previous prime is 85377067. The next prime is 85377091. The reversal of 85377079 is 97077358.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85377067) and next prime (85377091).

It is a cyclic number.

It is not a de Polignac number, because 85377079 - 2²¹ = 83279927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85377029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349 + ... + 13489.

It is an arithmetic number, because the mean of its divisors is an integer number (21348910).

Almost surely, 2^85377079 is an apocalyptic number.

85377079 is a deficient number, since it is larger than the sum of its proper divisors (18561).

85377079 is a wasteful number, since it uses less digits than its factorization.

85377079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18560.

The product of its (nonzero) digits is 370440, while the sum is 46.

The square root of 85377079 is about 9239.9718073163. The cubic root of 85377079 is about 440.3321854426.

The spelling of 85377079 in words is "eighty-five million, three hundred seventy-seven thousand, seventy-nine".