7374721 has 4 divisors (see below), whose sum is σ = 7390000. Its totient is φ = 7359444.

The previous prime is 7374709. The next prime is 7374727. The reversal of 7374721 is 1274737.

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 a cyclic number.

It is not a de Polignac number, because 7374721 - 2¹³ = 7366529 is a prime.

It is a pancake number, because a pancake can be divided into 7374721 parts by 3840 straight cuts.

It is a Duffinian number.

7374721 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7374727) 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, 6891 + ... + 7888.

It is an arithmetic number, because the mean of its divisors is an integer number (1847500).

Almost surely, 2^7374721 is an apocalyptic number.

It is an amenable number.

7374721 is a deficient number, since it is larger than the sum of its proper divisors (15279).

7374721 is a wasteful number, since it uses less digits than its factorization.

7374721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15278.

The product of its digits is 8232, while the sum is 31.

The square root of 7374721 is about 2715.6437542505. The cubic root of 7374721 is about 194.6473661955.

The spelling of 7374721 in words is "seven million, three hundred seventy-four thousand, seven hundred twenty-one".