673740007 has 8 divisors (see below), whose sum is σ = 685143792. Its totient is φ = 662376000.

The previous prime is 673739999. The next prime is 673740017. The reversal of 673740007 is 700047376.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673740007 - 2³ = 673739999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673740017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25257 + ... + 44557.

It is an arithmetic number, because the mean of its divisors is an integer number (85642974).

Almost surely, 2^673740007 is an apocalyptic number.

673740007 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

673740007 is a deficient number, since it is larger than the sum of its proper divisors (11403785).

673740007 is a wasteful number, since it uses less digits than its factorization.

673740007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19889.

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 673740007 is about 25956.5022104289. The cubic root of 673740007 is about 876.6591678836.

The spelling of 673740007 in words is "six hundred seventy-three million, seven hundred forty thousand, seven".