73073911 has 4 divisors (see below), whose sum is σ = 73122112. Its totient is φ = 73025712.

The previous prime is 73073887. The next prime is 73073933. The reversal of 73073911 is 11937037.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73073911 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 (73073711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21750 + ... + 24883.

It is an arithmetic number, because the mean of its divisors is an integer number (18280528).

Almost surely, 2^73073911 is an apocalyptic number.

73073911 is a deficient number, since it is larger than the sum of its proper divisors (48201).

73073911 is a wasteful number, since it uses less digits than its factorization.

73073911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48200.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 73073911 is about 8548.3279651637. The cubic root of 73073911 is about 418.0749218968.

It can be divided in two parts, 73073 and 911, that added together give a square (73984 = 272²).

The spelling of 73073911 in words is "seventy-three million, seventy-three thousand, nine hundred eleven".