672840355 has 8 divisors (see below), whose sum is σ = 880809264. Its totient is φ = 489338400.

The previous prime is 672840347. The next prime is 672840373. The reversal of 672840355 is 553048276.

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

It is not a de Polignac number, because 672840355 - 2³ = 672840347 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6116676 + ... + 6116785.

It is an arithmetic number, because the mean of its divisors is an integer number (110101158).

Almost surely, 2^672840355 is an apocalyptic number.

672840355 is a deficient number, since it is larger than the sum of its proper divisors (207968909).

672840355 is a wasteful number, since it uses less digits than its factorization.

672840355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12233477.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 672840355 is about 25939.1664283955. The cubic root of 672840355 is about 876.2687900554.

The spelling of 672840355 in words is "six hundred seventy-two million, eight hundred forty thousand, three hundred fifty-five".