73042779 has 8 divisors (see below), whose sum is σ = 101624832. Its totient is φ = 46577960.

The previous prime is 73042729. The next prime is 73042807. The reversal of 73042779 is 97724037.

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 73042779 - 2¹² = 73038683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73042729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529227 + ... + 529364.

It is an arithmetic number, because the mean of its divisors is an integer number (12703104).

Almost surely, 2^73042779 is an apocalyptic number.

73042779 is a deficient number, since it is larger than the sum of its proper divisors (28582053).

73042779 is a wasteful number, since it uses less digits than its factorization.

73042779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058617.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 73042779 is about 8546.5068302787. The cubic root of 73042779 is about 418.0155420303.

The spelling of 73042779 in words is "seventy-three million, forty-two thousand, seven hundred seventy-nine".