72904077 has 8 divisors (see below), whose sum is σ = 108006080. Its totient is φ = 48602700.

The previous prime is 72904063. The next prime is 72904093. The reversal of 72904077 is 77040927.

It is not a de Polignac number, because 72904077 - 2⁸ = 72903821 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 (72904877) 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, 1350049 + ... + 1350102.

It is an arithmetic number, because the mean of its divisors is an integer number (13500760).

Almost surely, 2^72904077 is an apocalyptic number.

It is an amenable number.

72904077 is a deficient number, since it is larger than the sum of its proper divisors (35102003).

72904077 is a wasteful number, since it uses less digits than its factorization.

72904077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700160 (or 2700154 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 72904077 is about 8538.3884310800. The cubic root of 72904077 is about 417.7507824346.

The spelling of 72904077 in words is "seventy-two million, nine hundred four thousand, seventy-seven".