73674021 has 4 divisors (see below), whose sum is σ = 98232032. Its totient is φ = 49116012.

The previous prime is 73674017. The next prime is 73674043. The reversal of 73674021 is 12047637.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 73674021 - 2² = 73674017 is a prime.

It is a super-2 number, since 2×73674021² = 10855722740616882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73674021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73674061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12279001 + ... + 12279006.

It is an arithmetic number, because the mean of its divisors is an integer number (24558008).

Almost surely, 2^73674021 is an apocalyptic number.

It is an amenable number.

73674021 is a deficient number, since it is larger than the sum of its proper divisors (24558011).

73674021 is a wasteful number, since it uses less digits than its factorization.

73674021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24558010.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 73674021 is about 8583.3572103228. The cubic root of 73674021 is about 419.2162651903.

The spelling of 73674021 in words is "seventy-three million, six hundred seventy-four thousand, twenty-one".