672735403 has 4 divisors (see below), whose sum is σ = 672791728. Its totient is φ = 672679080.

The previous prime is 672735377. The next prime is 672735439. The reversal of 672735403 is 304537276.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672735403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672735463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2376 + ... + 36757.

It is an arithmetic number, because the mean of its divisors is an integer number (168197932).

Almost surely, 2^672735403 is an apocalyptic number.

672735403 is a deficient number, since it is larger than the sum of its proper divisors (56325).

672735403 is a wasteful number, since it uses less digits than its factorization.

672735403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56324.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 672735403 is about 25937.1433083908. The cubic root of 672735403 is about 876.2232265258.

The spelling of 672735403 in words is "six hundred seventy-two million, seven hundred thirty-five thousand, four hundred three".