73006381 has 8 divisors (see below), whose sum is σ = 88344000. Its totient is φ = 58895808.

The previous prime is 73006361. The next prime is 73006441. The reversal of 73006381 is 18360037.

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 73006381 - 2⁹ = 73005869 is a prime.

It is a super-2 number, since 2×73006381² = 10659863333434322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73006321) 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, 306631 + ... + 306868.

It is an arithmetic number, because the mean of its divisors is an integer number (11043000).

Almost surely, 2^73006381 is an apocalyptic number.

It is an amenable number.

73006381 is a deficient number, since it is larger than the sum of its proper divisors (15337619).

73006381 is a wasteful number, since it uses less digits than its factorization.

73006381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613523.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 73006381 is about 8544.3771569378. The cubic root of 73006381 is about 417.9460966182.

The spelling of 73006381 in words is "seventy-three million, six thousand, three hundred eighty-one".