672736347 has 40 divisors (see below), whose sum is σ = 1029915216. Its totient is φ = 437488128.

The previous prime is 672736343. The next prime is 672736357. The reversal of 672736347 is 743637276.

672736347 is a `hidden beast` number, since 6 + 7 + 2 + 7 + 3 + 634 + 7 = 666.

It is not a de Polignac number, because 672736347 - 2² = 672736343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672736343) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 612703 + ... + 613799.

Almost surely, 2^672736347 is an apocalyptic number.

672736347 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

672736347 is a deficient number, since it is larger than the sum of its proper divisors (357178869).

672736347 is a wasteful number, since it uses less digits than its factorization.

672736347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1280 counting only the distinct ones).

The product of its digits is 889056, while the sum is 45.

The square root of 672736347 is about 25937.1615062250. The cubic root of 672736347 is about 876.2236363721.

The spelling of 672736347 in words is "six hundred seventy-two million, seven hundred thirty-six thousand, three hundred forty-seven".