72273914 has 4 divisors (see below), whose sum is σ = 108410874. Its totient is φ = 36136956.

The previous prime is 72273907. The next prime is 72273923. The reversal of 72273914 is 41937227.

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., 70845889 + 1428025 = 8417^2 + 1195^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18068477 + ... + 18068480.

Almost surely, 2^72273914 is an apocalyptic number.

72273914 is a deficient number, since it is larger than the sum of its proper divisors (36136960).

72273914 is a wasteful number, since it uses less digits than its factorization.

72273914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36136959.

The product of its digits is 21168, while the sum is 35.

The square root of 72273914 is about 8501.4065895004. The cubic root of 72273914 is about 416.5436563457.

The spelling of 72273914 in words is "seventy-two million, two hundred seventy-three thousand, nine hundred fourteen".