72363922 has 4 divisors (see below), whose sum is σ = 108545886. Its totient is φ = 36181960.

The previous prime is 72363887. The next prime is 72363923. The reversal of 72363922 is 22936327.

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., 43837641 + 28526281 = 6621^2 + 5341^2 .

It is not an unprimeable number, because it can be changed into a prime (72363923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18090979 + ... + 18090982.

Almost surely, 2^72363922 is an apocalyptic number.

72363922 is a deficient number, since it is larger than the sum of its proper divisors (36181964).

72363922 is a wasteful number, since it uses less digits than its factorization.

72363922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36181963.

The product of its digits is 27216, while the sum is 34.

The square root of 72363922 is about 8506.6986545898. The cubic root of 72363922 is about 416.7165020570.

The spelling of 72363922 in words is "seventy-two million, three hundred sixty-three thousand, nine hundred twenty-two".