65801394 has 12 divisors (see below), whose sum is σ = 142569726. Its totient is φ = 21933792.

The previous prime is 65801383. The next prime is 65801401. The reversal of 65801394 is 49310856.

65801394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43362225 + 22439169 = 6585^2 + 4737^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1827799 + ... + 1827834.

Almost surely, 2^65801394 is an apocalyptic number.

65801394 is an abundant number, since it is smaller than the sum of its proper divisors (76768332).

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

65801394 is a wasteful number, since it uses less digits than its factorization.

65801394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655641 (or 3655638 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 65801394 is about 8111.8058408717. The cubic root of 65801394 is about 403.7182339132.

The spelling of 65801394 in words is "sixty-five million, eight hundred one thousand, three hundred ninety-four".