85077401 has 4 divisors (see below), whose sum is σ = 90081972. Its totient is φ = 80072832.

The previous prime is 85077397. The next prime is 85077403. The reversal of 85077401 is 10477058.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56987401 + 28090000 = 7549^2 + 5300^2 .

It is a cyclic number.

It is not a de Polignac number, because 85077401 - 2² = 85077397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85077403) 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, 2502260 + ... + 2502293.

It is an arithmetic number, because the mean of its divisors is an integer number (22520493).

Almost surely, 2^85077401 is an apocalyptic number.

It is an amenable number.

85077401 is a deficient number, since it is larger than the sum of its proper divisors (5004571).

85077401 is a wasteful number, since it uses less digits than its factorization.

85077401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004570.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 85077401 is about 9223.7411607222. The cubic root of 85077401 is about 439.8163851639.

The spelling of 85077401 in words is "eighty-five million, seventy-seven thousand, four hundred one".