65421386 has 8 divisors (see below), whose sum is σ = 98190144. Its totient is φ = 32691340.

The previous prime is 65421373. The next prime is 65421397. The reversal of 65421386 is 68312456.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5000 + ... + 12483.

It is an arithmetic number, because the mean of its divisors is an integer number (12273768).

Almost surely, 2^65421386 is an apocalyptic number.

65421386 is a deficient number, since it is larger than the sum of its proper divisors (32768758).

65421386 is a wasteful number, since it uses less digits than its factorization.

65421386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19356.

The product of its digits is 34560, while the sum is 35.

The square root of 65421386 is about 8088.3487808081. The cubic root of 65421386 is about 402.9395653043.

The spelling of 65421386 in words is "sixty-five million, four hundred twenty-one thousand, three hundred eighty-six".