65421334 has 16 divisors (see below), whose sum is σ = 107678160. Its totient is φ = 29563360.

The previous prime is 65421329. The next prime is 65421353. The reversal of 65421334 is 43312456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4789 + ... + 12400.

It is an arithmetic number, because the mean of its divisors is an integer number (6729885).

Almost surely, 2^65421334 is an apocalyptic number.

65421334 is a deficient number, since it is larger than the sum of its proper divisors (42256826).

65421334 is a wasteful number, since it uses less digits than its factorization.

65421334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17375.

The product of its digits is 8640, while the sum is 28.

The square root of 65421334 is about 8088.3455663071. The cubic root of 65421334 is about 402.9394585458.

The spelling of 65421334 in words is "sixty-five million, four hundred twenty-one thousand, three hundred thirty-four".