673426655 has 16 divisors (see below), whose sum is σ = 902081664. Its totient is φ = 478373280.

The previous prime is 673426597. The next prime is 673426657. The reversal of 673426655 is 556624376.

It is a happy number.

It is not a de Polignac number, because 673426655 - 2¹⁶ = 673361119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673426657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140009 + ... + 144738.

It is an arithmetic number, because the mean of its divisors is an integer number (56380104).

Almost surely, 2^673426655 is an apocalyptic number.

673426655 is a deficient number, since it is larger than the sum of its proper divisors (228655009).

673426655 is a wasteful number, since it uses less digits than its factorization.

673426655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284806.

The product of its digits is 907200, while the sum is 44.

The square root of 673426655 is about 25950.4654100847. The cubic root of 673426655 is about 876.5232373569.

The spelling of 673426655 in words is "six hundred seventy-three million, four hundred twenty-six thousand, six hundred fifty-five".