73473077 has 4 divisors (see below), whose sum is σ = 73691436. Its totient is φ = 73254720.

The previous prime is 73473073. The next prime is 73473089. The reversal of 73473077 is 77037437.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22221796 + 51251281 = 4714^2 + 7159^2 .

It is a cyclic number.

It is not a de Polignac number, because 73473077 - 2² = 73473073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73473077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73473073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108674 + ... + 109347.

It is an arithmetic number, because the mean of its divisors is an integer number (18422859).

Almost surely, 2^73473077 is an apocalyptic number.

It is an amenable number.

73473077 is a deficient number, since it is larger than the sum of its proper divisors (218359).

73473077 is a wasteful number, since it uses less digits than its factorization.

73473077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218358.

The product of its (nonzero) digits is 86436, while the sum is 38.

The square root of 73473077 is about 8571.6437746794. The cubic root of 73473077 is about 418.8347842880.

The spelling of 73473077 in words is "seventy-three million, four hundred seventy-three thousand, seventy-seven".