74321001 has 6 divisors (see below), whose sum is σ = 107352570. Its totient is φ = 49547328.

The previous prime is 74320949. The next prime is 74321003. The reversal of 74321001 is 10012347.

It can be written as a sum of positive squares in only one way, i.e., 56250000 + 18071001 = 7500^2 + 4251^2 .

It is not a de Polignac number, because 74321001 - 2¹⁰ = 74319977 is a prime.

It is a super-2 number, since 2×74321001² = 11047222379284002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74321003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4128936 + ... + 4128953.

It is an arithmetic number, because the mean of its divisors is an integer number (17892095).

Almost surely, 2^74321001 is an apocalyptic number.

It is an amenable number.

74321001 is a deficient number, since it is larger than the sum of its proper divisors (33031569).

74321001 is a wasteful number, since it uses less digits than its factorization.

74321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8257895 (or 8257892 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 74321001 is about 8620.9628812564. The cubic root of 74321001 is about 420.4398283620.

Adding to 74321001 its reverse (10012347), we get a palindrome (84333348).

The spelling of 74321001 in words is "seventy-four million, three hundred twenty-one thousand, one".