73740407 has 8 divisors (see below), whose sum is σ = 84084336. Its totient is φ = 64063872.

The previous prime is 73740389. The next prime is 73740419. The reversal of 73740407 is 70404737.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73740407 - 2⁸ = 73740151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73740487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166613 + ... + 167054.

It is an arithmetic number, because the mean of its divisors is an integer number (10510542).

Almost surely, 2^73740407 is an apocalyptic number.

73740407 is a deficient number, since it is larger than the sum of its proper divisors (10343929).

73740407 is a wasteful number, since it uses less digits than its factorization.

73740407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333697.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 73740407 is about 8587.2234744415. The cubic root of 73740407 is about 419.3421428323.

It can be divided in two parts, 73740 and 407, that added together give a palindrome (74147).

The spelling of 73740407 in words is "seventy-three million, seven hundred forty thousand, four hundred seven".