73906772 has 6 divisors (see below), whose sum is σ = 129336858. Its totient is φ = 36953384.

The previous prime is 73906771. The next prime is 73906783. The reversal of 73906772 is 27760937.

It can be written as a sum of positive squares in only one way, i.e., 52041796 + 21864976 = 7214^2 + 4676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73906771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9238343 + ... + 9238350.

It is an arithmetic number, because the mean of its divisors is an integer number (21556143).

Almost surely, 2^73906772 is an apocalyptic number.

It is an amenable number.

73906772 is a deficient number, since it is larger than the sum of its proper divisors (55430086).

73906772 is a wasteful number, since it uses less digits than its factorization.

73906772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18476697 (or 18476695 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 73906772 is about 8596.9047918422. The cubic root of 73906772 is about 419.6572638520.

The spelling of 73906772 in words is "seventy-three million, nine hundred six thousand, seven hundred seventy-two".