673400739 has 32 divisors (see below), whose sum is σ = 1027597824. Its totient is φ = 388270080.

The previous prime is 673400737. The next prime is 673400773. The reversal of 673400739 is 937004376.

It is not a de Polignac number, because 673400739 - 2¹ = 673400737 is a prime.

It is a super-2 number, since 2×673400739² = 906937110571492242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 673400697 and 673400706.

It is not an unprimeable number, because it can be changed into a prime (673400731) 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 31 ways as a sum of consecutive naturals, for example, 144189 + ... + 148785.

It is an arithmetic number, because the mean of its divisors is an integer number (32112432).

Almost surely, 2^673400739 is an apocalyptic number.

673400739 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

673400739 is a deficient number, since it is larger than the sum of its proper divisors (354197085).

673400739 is a wasteful number, since it uses less digits than its factorization.

673400739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827.

The product of its (nonzero) digits is 95256, while the sum is 39.

The square root of 673400739 is about 25949.9660693420. The cubic root of 673400739 is about 876.5119932382.

The spelling of 673400739 in words is "six hundred seventy-three million, four hundred thousand, seven hundred thirty-nine".