738643006 has 4 divisors (see below), whose sum is σ = 1107964512. Its totient is φ = 369321502.

The previous prime is 738643001. The next prime is 738643019. The reversal of 738643006 is 600346837.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600346837 = 31 ⋅19366027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738643001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184660750 + ... + 184660753.

It is an arithmetic number, because the mean of its divisors is an integer number (276991128).

Almost surely, 2^738643006 is an apocalyptic number.

738643006 is a deficient number, since it is larger than the sum of its proper divisors (369321506).

738643006 is a wasteful number, since it uses less digits than its factorization.

738643006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369321505.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 738643006 is about 27177.9875266731. The cubic root of 738643006 is about 903.9509454351.

The spelling of 738643006 in words is "seven hundred thirty-eight million, six hundred forty-three thousand, six".