85377788 has 6 divisors (see below), whose sum is σ = 149411136. Its totient is φ = 42688892.

The previous prime is 85377781. The next prime is 85377797. The reversal of 85377788 is 88777358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85377781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10672220 + ... + 10672227.

It is an arithmetic number, because the mean of its divisors is an integer number (24901856).

Almost surely, 2^85377788 is an apocalyptic number.

It is an amenable number.

85377788 is a deficient number, since it is larger than the sum of its proper divisors (64033348).

85377788 is a wasteful number, since it uses less digits than its factorization.

85377788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21344451 (or 21344449 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 53.

The square root of 85377788 is about 9240.0101731546. The cubic root of 85377788 is about 440.3334043282. Note that the first 3 decimals are identical.

The spelling of 85377788 in words is "eighty-five million, three hundred seventy-seven thousand, seven hundred eighty-eight".