72923766 has 16 divisors (see below), whose sum is σ = 146095104. Its totient is φ = 24266664.

The previous prime is 72923737. The next prime is 72923779. The reversal of 72923766 is 66732927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6370 + ... + 13653.

It is an arithmetic number, because the mean of its divisors is an integer number (9130944).

Almost surely, 2^72923766 is an apocalyptic number.

72923766 is an abundant number, since it is smaller than the sum of its proper divisors (73171338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72923766 is a wasteful number, since it uses less digits than its factorization.

72923766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20635.

The product of its digits is 190512, while the sum is 42.

The square root of 72923766 is about 8539.5413225770. The cubic root of 72923766 is about 417.7883859778.

Adding to 72923766 its product of digits (190512), we get a triangular number (73114278 = T₁₂₀₉₂).

The spelling of 72923766 in words is "seventy-two million, nine hundred twenty-three thousand, seven hundred sixty-six".