673634601 has 6 divisors (see below), whose sum is σ = 973027770. Its totient is φ = 449089728.

The previous prime is 673634579. The next prime is 673634699. The reversal of 673634601 is 106436376.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 366684201 + 306950400 = 19149^2 + 17520^2 .

It is not a de Polignac number, because 673634601 - 2⁷ = 673634473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673634201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37424136 + ... + 37424153.

It is an arithmetic number, because the mean of its divisors is an integer number (162171295).

Almost surely, 2^673634601 is an apocalyptic number.

It is an amenable number.

673634601 is a deficient number, since it is larger than the sum of its proper divisors (299393169).

673634601 is a wasteful number, since it uses less digits than its factorization.

673634601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74848295 (or 74848292 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 673634601 is about 25954.4716956443. The cubic root of 673634601 is about 876.6134479943.

The spelling of 673634601 in words is "six hundred seventy-three million, six hundred thirty-four thousand, six hundred one".