73972292 has 6 divisors (see below), whose sum is σ = 129451518. Its totient is φ = 36986144.

The previous prime is 73972291. The next prime is 73972331. The reversal of 73972292 is 29227937.

It can be written as a sum of positive squares in only one way, i.e., 71334916 + 2637376 = 8446^2 + 1624^2 .

It is not an unprimeable number, because it can be changed into a prime (73972291) 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, 9246533 + ... + 9246540.

It is an arithmetic number, because the mean of its divisors is an integer number (21575253).

Almost surely, 2^73972292 is an apocalyptic number.

It is an amenable number.

73972292 is a deficient number, since it is larger than the sum of its proper divisors (55479226).

73972292 is a wasteful number, since it uses less digits than its factorization.

73972292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18493077 (or 18493075 counting only the distinct ones).

The product of its digits is 95256, while the sum is 41.

The square root of 73972292 is about 8600.7146214719. The cubic root of 73972292 is about 419.7812390617.

The spelling of 73972292 in words is "seventy-three million, nine hundred seventy-two thousand, two hundred ninety-two".