64748774 has 8 divisors (see below), whose sum is σ = 97983000. Its totient is φ = 32087776.

The previous prime is 64748771. The next prime is 64748819. The reversal of 64748774 is 47784746.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64748771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143024 + ... + 143475.

It is an arithmetic number, because the mean of its divisors is an integer number (12247875).

Almost surely, 2^64748774 is an apocalyptic number.

64748774 is a deficient number, since it is larger than the sum of its proper divisors (33234226).

64748774 is a wasteful number, since it uses less digits than its factorization.

64748774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286614.

The product of its digits is 1053696, while the sum is 47.

The square root of 64748774 is about 8046.6622894216. The cubic root of 64748774 is about 401.5539014919.

The spelling of 64748774 in words is "sixty-four million, seven hundred forty-eight thousand, seven hundred seventy-four".