672642734 has 4 divisors (see below), whose sum is σ = 1008964104. Its totient is φ = 336321366.

The previous prime is 672642703. The next prime is 672642739. The reversal of 672642734 is 437246276.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 672642691 and 672642700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672642739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168160682 + ... + 168160685.

It is an arithmetic number, because the mean of its divisors is an integer number (252241026).

Almost surely, 2^672642734 is an apocalyptic number.

672642734 is a deficient number, since it is larger than the sum of its proper divisors (336321370).

672642734 is a wasteful number, since it uses less digits than its factorization.

672642734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336321369.

The product of its digits is 338688, while the sum is 41.

The square root of 672642734 is about 25935.3568319389. The cubic root of 672642734 is about 876.1829915595.

It can be divided in two parts, 672642 and 734, that added together give a palindrome (673376).

The spelling of 672642734 in words is "six hundred seventy-two million, six hundred forty-two thousand, seven hundred thirty-four".