673407481 has 4 divisors (see below), whose sum is σ = 708850000. Its totient is φ = 637964964.

The previous prime is 673407479. The next prime is 673407499. The reversal of 673407481 is 184704376.

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 not a de Polignac number, because 673407481 - 2¹ = 673407479 is a prime.

It is a super-2 number, since 2×673407481² = 906955270933530722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673407421) 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, 17721231 + ... + 17721268.

It is an arithmetic number, because the mean of its divisors is an integer number (177212500).

Almost surely, 2^673407481 is an apocalyptic number.

It is an amenable number.

673407481 is a deficient number, since it is larger than the sum of its proper divisors (35442519).

673407481 is a wasteful number, since it uses less digits than its factorization.

673407481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35442518.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 673407481 is about 25950.0959728476. The cubic root of 673407481 is about 876.5149184029.

The spelling of 673407481 in words is "six hundred seventy-three million, four hundred seven thousand, four hundred eighty-one".