85980770 has 16 divisors (see below), whose sum is σ = 154924920. Its totient is φ = 34356864.

The previous prime is 85980767. The next prime is 85980773. The reversal of 85980770 is 7708958.

It is an interprime number because it is at equal distance from previous prime (85980767) and next prime (85980773).

It can be written as a sum of positive squares in 4 ways, for example, as 70778569 + 15202201 = 8413^2 + 3899^2 .

It is not an unprimeable number, because it can be changed into a prime (85980773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7214 + ... + 14966.

Almost surely, 2^85980770 is an apocalyptic number.

85980770 is a deficient number, since it is larger than the sum of its proper divisors (68944150).

85980770 is a wasteful number, since it uses less digits than its factorization.

85980770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 85980770 is about 9272.5816254159. The cubic root of 85980770 is about 441.3675940571.

The spelling of 85980770 in words is "eighty-five million, nine hundred eighty thousand, seven hundred seventy".