65108890 has 48 divisors (see below), whose sum is σ = 147240576. Its totient is φ = 20291040.

The previous prime is 65108887. The next prime is 65108893. The reversal of 65108890 is 9880156.

It is an interprime number because it is at equal distance from previous prime (65108887) and next prime (65108893).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65108893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4627 + ... + 12313.

It is an arithmetic number, because the mean of its divisors is an integer number (3067512).

Almost surely, 2^65108890 is an apocalyptic number.

65108890 is an abundant number, since it is smaller than the sum of its proper divisors (82131686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65108890 is a wasteful number, since it uses less digits than its factorization.

65108890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723 (or 7712 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 65108890 is about 8069.0079935516. The cubic root of 65108890 is about 402.2969720506.

It can be divided in two parts, 6510 and 8890, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 65108890 in words is "sixty-five million, one hundred eight thousand, eight hundred ninety".