672670129 has 8 divisors (see below), whose sum is σ = 714342240. Its totient is φ = 631624896.

The previous prime is 672670123. The next prime is 672670139. The reversal of 672670129 is 921076276.

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 672670129 - 2¹¹ = 672668081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672670091 and 672670100.

It is not an unprimeable number, because it can be changed into a prime (672670123) 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, 154507 + ... + 158800.

It is an arithmetic number, because the mean of its divisors is an integer number (89292780).

Almost surely, 2^672670129 is an apocalyptic number.

It is an amenable number.

672670129 is a deficient number, since it is larger than the sum of its proper divisors (41672111).

672670129 is a wasteful number, since it uses less digits than its factorization.

672670129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313439.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 672670129 is about 25935.8849665864. The cubic root of 672670129 is about 876.1948862876.

The spelling of 672670129 in words is "six hundred seventy-two million, six hundred seventy thousand, one hundred twenty-nine".