65085438 has 16 divisors (see below), whose sum is σ = 142004736. Its totient is φ = 19722840.

The previous prime is 65085421. The next prime is 65085439. The reversal of 65085438 is 83458056.

It is a happy number.

It is a super-2 number, since 2×65085438² = 8472228479303688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65085396 and 65085405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65085439) 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, 493006 + ... + 493137.

It is an arithmetic number, because the mean of its divisors is an integer number (8875296).

Almost surely, 2^65085438 is an apocalyptic number.

65085438 is an abundant number, since it is smaller than the sum of its proper divisors (76919298).

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

65085438 is a wasteful number, since it uses less digits than its factorization.

65085438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986159.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 65085438 is about 8067.5546480950. The cubic root of 65085438 is about 402.2486642512.

The spelling of 65085438 in words is "sixty-five million, eighty-five thousand, four hundred thirty-eight".