672774453 has 24 divisors (see below), whose sum is σ = 1072071000. Its totient is φ = 403914240.

The previous prime is 672774437. The next prime is 672774461. The reversal of 672774453 is 354477276.

It can be written as a sum of positive squares in 4 ways, for example, as 10381284 + 662393169 = 3222^2 + 25737^2 .

It is not a de Polignac number, because 672774453 - 2⁴ = 672774437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672774399 and 672774408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672774413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65328 + ... + 74921.

It is an arithmetic number, because the mean of its divisors is an integer number (44669625).

Almost surely, 2^672774453 is an apocalyptic number.

It is an amenable number.

672774453 is a deficient number, since it is larger than the sum of its proper divisors (399296547).

672774453 is a wasteful number, since it uses less digits than its factorization.

672774453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140309 (or 140306 counting only the distinct ones).

The product of its digits is 987840, while the sum is 45.

The square root of 672774453 is about 25937.8960789035. The cubic root of 672774453 is about 876.2401801229.

The spelling of 672774453 in words is "six hundred seventy-two million, seven hundred seventy-four thousand, four hundred fifty-three".