64274638 has 8 divisors (see below), whose sum is σ = 96494832. Its totient is φ = 32109696.

The previous prime is 64274629. The next prime is 64274647. The reversal of 64274638 is 83647246.

It is a happy number.

64274638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64274629) and next prime (64274647).

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

It is a self number, because there is not a number n which added to its sum of digits gives 64274638.

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 3 ways as a sum of consecutive naturals, for example, 10770 + ... + 15637.

It is an arithmetic number, because the mean of its divisors is an integer number (12061854).

Almost surely, 2^64274638 is an apocalyptic number.

64274638 is a deficient number, since it is larger than the sum of its proper divisors (32220194).

64274638 is a wasteful number, since it uses less digits than its factorization.

64274638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626.

The product of its digits is 193536, while the sum is 40.

The square root of 64274638 is about 8017.1464998464. The cubic root of 64274638 is about 400.5713460208.

The spelling of 64274638 in words is "sixty-four million, two hundred seventy-four thousand, six hundred thirty-eight".