73215077 has 8 divisors (see below), whose sum is σ = 79177560. Its totient is φ = 67299840.

The previous prime is 73215061. The next prime is 73215091. The reversal of 73215077 is 77051237.

It can be written as a sum of positive squares in 4 ways, for example, as 863041 + 72352036 = 929^2 + 8506^2 .

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 73215077 - 2⁴ = 73215061 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 (73215017) 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, 8552 + ... + 14817.

It is an arithmetic number, because the mean of its divisors is an integer number (9897195).

Almost surely, 2^73215077 is an apocalyptic number.

It is an amenable number.

73215077 is a deficient number, since it is larger than the sum of its proper divisors (5962483).

73215077 is a wasteful number, since it uses less digits than its factorization.

73215077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23623.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 73215077 is about 8556.5809176329. The cubic root of 73215077 is about 418.3439645699.

The spelling of 73215077 in words is "seventy-three million, two hundred fifteen thousand, seventy-seven".