65435790 has 64 divisors (see below), whose sum is σ = 180135936. Its totient is φ = 14902272.

The previous prime is 65435767. The next prime is 65435819. The reversal of 65435790 is 9753456.

It is a super-2 number, since 2×65435790² = 8563685225848200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96894 + ... + 97566.

It is an arithmetic number, because the mean of its divisors is an integer number (2814624).

Almost surely, 2^65435790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65435790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90067968).

65435790 is an abundant number, since it is smaller than the sum of its proper divisors (114700146).

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

65435790 is a wasteful number, since it uses less digits than its factorization.

65435790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 65435790 is about 8089.2391483996. The cubic root of 65435790 is about 402.9691352250.

The spelling of 65435790 in words is "sixty-five million, four hundred thirty-five thousand, seven hundred ninety".