64672703 has 4 divisors (see below), whose sum is σ = 66250128. Its totient is φ = 63095280.

The previous prime is 64672681. The next prime is 64672717. The reversal of 64672703 is 30727646.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64672703 - 2¹⁰ = 64671679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64672733) 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, 788651 + ... + 788732.

It is an arithmetic number, because the mean of its divisors is an integer number (16562532).

Almost surely, 2^64672703 is an apocalyptic number.

64672703 is a deficient number, since it is larger than the sum of its proper divisors (1577425).

64672703 is a wasteful number, since it uses less digits than its factorization.

64672703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577424.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 64672703 is about 8041.9340335519. The cubic root of 64672703 is about 401.3965827996.

The spelling of 64672703 in words is "sixty-four million, six hundred seventy-two thousand, seven hundred three".