7072738 has 4 divisors (see below), whose sum is σ = 10609110. Its totient is φ = 3536368.

The previous prime is 7072699. The next prime is 7072771. The reversal of 7072738 is 8372707.

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

It can be written as a sum of positive squares in only one way, i.e., 6744409 + 328329 = 2597^2 + 573^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1768183 + ... + 1768186.

Almost surely, 2^7072738 is an apocalyptic number.

7072738 is a deficient number, since it is larger than the sum of its proper divisors (3536372).

7072738 is a wasteful number, since it uses less digits than its factorization.

7072738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536371.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 7072738 is about 2659.4619756635. The cubic root of 7072738 is about 191.9534211373.

It can be divided in two parts, 707273 and 8, that added together give a 4-th power (707281 = 29⁴).

The spelling of 7072738 in words is "seven million, seventy-two thousand, seven hundred thirty-eight".