73074021 has 8 divisors (see below), whose sum is σ = 97503744. Its totient is φ = 48680160.

The previous prime is 73074017. The next prime is 73074031. The reversal of 73074021 is 12047037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73074021 - 2² = 73074017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73073982 and 73074000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73074031) 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, 3781 + ... + 12666.

It is an arithmetic number, because the mean of its divisors is an integer number (12187968).

Almost surely, 2^73074021 is an apocalyptic number.

It is an amenable number.

73074021 is a deficient number, since it is larger than the sum of its proper divisors (24429723).

73074021 is a wasteful number, since it uses less digits than its factorization.

73074021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17931.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 73074021 is about 8548.3343991681. The cubic root of 73074021 is about 418.0751316763.

The spelling of 73074021 in words is "seventy-three million, seventy-four thousand, twenty-one".