672345707 has 4 divisors (see below), whose sum is σ = 733468056. Its totient is φ = 611223360.

The previous prime is 672345697. The next prime is 672345719. The reversal of 672345707 is 707543276.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 672345707 - 2⁸ = 672345451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672345727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30561158 + ... + 30561179.

It is an arithmetic number, because the mean of its divisors is an integer number (183367014).

Almost surely, 2^672345707 is an apocalyptic number.

672345707 is a deficient number, since it is larger than the sum of its proper divisors (61122349).

672345707 is a wasteful number, since it uses less digits than its factorization.

672345707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61122348.

The product of its (nonzero) digits is 246960, while the sum is 41.

The square root of 672345707 is about 25929.6299048020. The cubic root of 672345707 is about 876.0540036590.

The spelling of 672345707 in words is "six hundred seventy-two million, three hundred forty-five thousand, seven hundred seven".