73472649 has 16 divisors (see below), whose sum is σ = 103171200. Its totient is φ = 46417536.

The previous prime is 73472647. The next prime is 73472653. The reversal of 73472649 is 94627437.

It is not a de Polignac number, because 73472649 - 2¹ = 73472647 is a prime.

It is a super-3 number, since 3×73472649³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73472649.

It is not an unprimeable number, because it can be changed into a prime (73472647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2637 + ... + 12405.

It is an arithmetic number, because the mean of its divisors is an integer number (6448200).

Almost surely, 2^73472649 is an apocalyptic number.

It is an amenable number.

73472649 is a deficient number, since it is larger than the sum of its proper divisors (29698551).

73472649 is a wasteful number, since it uses less digits than its factorization.

73472649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904.

The product of its digits is 254016, while the sum is 42.

The square root of 73472649 is about 8571.6188086032. The cubic root of 73472649 is about 418.8339710121.

The spelling of 73472649 in words is "seventy-three million, four hundred seventy-two thousand, six hundred forty-nine".