672703693 has 4 divisors (see below), whose sum is σ = 674144640. Its totient is φ = 671262748.

The previous prime is 672703631. The next prime is 672703711. The reversal of 672703693 is 396307276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672703693 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 (672703393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719773 + ... + 720706.

It is an arithmetic number, because the mean of its divisors is an integer number (168536160).

Almost surely, 2^672703693 is an apocalyptic number.

It is an amenable number.

672703693 is a deficient number, since it is larger than the sum of its proper divisors (1440947).

672703693 is a wasteful number, since it uses less digits than its factorization.

672703693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440946.

The product of its (nonzero) digits is 285768, while the sum is 43.

The square root of 672703693 is about 25936.5320156724. The cubic root of 672703693 is about 876.2094591145.

The spelling of 672703693 in words is "six hundred seventy-two million, seven hundred three thousand, six hundred ninety-three".