73985470 has 32 divisors (see below), whose sum is σ = 144406080. Its totient is φ = 27129600.

The previous prime is 73985447. The next prime is 73985531. The reversal of 73985470 is 7458937.

It is a happy number.

It is a super-2 number, since 2×73985470² = 10947699542241800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17746 + ... + 21514.

It is an arithmetic number, because the mean of its divisors is an integer number (4512690).

Almost surely, 2^73985470 is an apocalyptic number.

73985470 is a deficient number, since it is larger than the sum of its proper divisors (70420610).

73985470 is a wasteful number, since it uses less digits than its factorization.

73985470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 73985470 is about 8601.4806864865. The cubic root of 73985470 is about 419.8061652810.

The spelling of 73985470 in words is "seventy-three million, nine hundred eighty-five thousand, four hundred seventy".