73891472 has 10 divisors (see below), whose sum is σ = 143164758. Its totient is φ = 36945728.

The previous prime is 73891463. The next prime is 73891483. The reversal of 73891472 is 27419837.

It can be written as a sum of positive squares in only one way, i.e., 73891216 + 256 = 8596^2 + 16^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2309093 + ... + 2309124.

Almost surely, 2^73891472 is an apocalyptic number.

It is an amenable number.

73891472 is a deficient number, since it is larger than the sum of its proper divisors (69273286).

73891472 is a wasteful number, since it uses less digits than its factorization.

73891472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618225 (or 4618219 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 73891472 is about 8596.0148906339. The cubic root of 73891472 is about 419.6283030451.

The spelling of 73891472 in words is "seventy-three million, eight hundred ninety-one thousand, four hundred seventy-two".