64763742 has 32 divisors (see below), whose sum is σ = 136972800. Its totient is φ = 20357568.

The previous prime is 64763731. The next prime is 64763753. The reversal of 64763742 is 24736746.

It is an interprime number because it is at equal distance from previous prime (64763731) and next prime (64763753).

It is a self number, because there is not a number n which added to its sum of digits gives 64763742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26058 + ... + 28434.

It is an arithmetic number, because the mean of its divisors is an integer number (4280400).

Almost surely, 2^64763742 is an apocalyptic number.

64763742 is an abundant number, since it is smaller than the sum of its proper divisors (72209058).

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

64763742 is a wasteful number, since it uses less digits than its factorization.

64763742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640.

The product of its digits is 169344, while the sum is 39.

The square root of 64763742 is about 8047.5923107474. The cubic root of 64763742 is about 401.5848415666.

The spelling of 64763742 in words is "sixty-four million, seven hundred sixty-three thousand, seven hundred forty-two".